Pentax K mount
Encyclopedia
The Pentax K mount, sometimes referred to as the "PK mount", is a lens mount
Lens mount
A lens mount is an interface — mechanical and often also electrical — between a photographic camera body and a lens. It is confined to cameras where the body allows interchangeable lenses, most usually the single lens reflex type or any movie camera of 16 mm or higher gauge...

 standard for mounting interchangeable photographic lens
Photographic lens
A camera lens is an optical lens or assembly of lenses used in conjunction with a camera body and mechanism to make images of objects either on photographic film or on other media capable of storing an image chemically or electronically.While in principle a simple convex lens will suffice, in...

es to 35 mm
135 film
The term 135 was introduced by Kodak in 1934 as a designation for cartridge film wide, specifically for still photography. It quickly grew in popularity, surpassing 120 film by the late 1960s to become the most popular photographic film format...

 single-lens reflex (SLR) camera
Camera
A camera is a device that records and stores images. These images may be still photographs or moving images such as videos or movies. The term camera comes from the camera obscura , an early mechanism for projecting images...

s. It was created by Pentax
Pentax
Pentax is a brand name used by Hoya Corporation for its medical-related products & services and Pentax Ricoh Imaging Company for cameras, sport optics , etc. Hoya purchased and merged with the Japanese optics company on March 31, 2008. Hoya's Pentax imaging business was sold to Ricoh Company, Ltd...

 in 1975, and has been used by all Pentax 35 mm and digital SLRs since. A number of other manufacturers have also produced many K-mount lenses and K-mount cameras.

Mounts

The Pentax K mount has undergone a number of evolutions over the years as new functionality has been added. In general, the term K mount may refer to the original K mount, or to all its variations.

Originally designed by Zeiss for an alliance with Pentax , it was intended to be a common lens mount for a proposed series of cameras and lenses. However, the plan failed to work out and the two firms parted company amicably, but Pentax retained the lens mount and at least one Zeiss lens design for its own use.

K mount

The original K mount is a simple bayonet connection with three tabs. It was introduced with the K series of cameras. The lens is locked into the camera with an approx. 70° clockwise turn (when looking at the front of the camera).

The only linkage with the camera is mechanical and involves the aperture
Aperture
In optics, an aperture is a hole or an opening through which light travels. More specifically, the aperture of an optical system is the opening that determines the cone angle of a bundle of rays that come to a focus in the image plane. The aperture determines how collimated the admitted rays are,...

. A slot between two of the bayonet tabs on the lens allows the stop-down coupler from the camera to sense the aperture setting on the lens and adjust the light meter display accordingly. Opposite this is the diaphragm
Diaphragm (optics)
In optics, a diaphragm is a thin opaque structure with an opening at its center. The role of the diaphragm is to stop the passage of light, except for the light passing through the aperture...

 release from the lens which extends into the camera body and holds open the spring-loaded diaphragm of the lens. When setting up a shot this keeps the diaphragm fully open. When the shutter is released, so is this lever. It allows the diaphragm to close to the desired setting while the film is being exposed, and opens it again after the shutter closes.

Both of these linkages are arranged so that they are aligned and spring-loaded by the act of inserting the lens and turning it until it locks.

Bodies equipped with the original K mount include the K series, the M series except the ME F, and the LX
Pentax LX
The Pentax LX is a 35 mm Single-lens reflex camera produced by Pentax in Japan between 1980 and 2001. The lens mount is the Pentax K mount, allowing the use of almost all Pentax 35 mm format lenses, those made before 1975 using a screw-mount adapter with limited automatic functionality. ...

. Lenses that support it include those labelled 'SMC Pentax', 'SMC Pentax-M' and 'SMC Pentax-A'. These K mount bodies cannot use lenses that lack an aperture ring, such as FAJ or DA.

K-mount lenses can be used on all Pentax bodies, but are restricted to stopped down mode when used with "crippled" KAF mount bodies (see below).

KF mount

The KF mount was Pentax's first attempt at an autofocus
Autofocus
An autofocus optical system uses a sensor, a control system and a motor to focus fully automatic or on a manually selected point or area. An electronic rangefinder has a display instead of the motor; the adjustment of the optical system has to be done manually until indication...

 system. This autofocus system used sensors in the camera body and a motor in the lens. The two were connected via five new electrical contacts on the bayonet mount itself. One permitted the lens to turn on the camera's metering and focus sensors, two focused the lens (towards and away from infinity) and two appear to have been unused and may have been reserved for future functionality.

The KF mount was largely a failure. Only one camera and one lens ever used this mount, the Pentax ME F
Pentax ME F
The Pentax ME F was an amateur level, interchangeable lens, 35 mm film, single-lens reflex camera. It was manufactured by Asahi Optical Co., Ltd. of Japan from November 1981 to 1984...

 and SMC Pentax-AF 35-70/2.8. The lens was somewhat large and cumbersome http://www.bdimitrov.de/kmp/bodies/photos/ME_F_AF35-70f2.8.jpg since it had to enclose both the focusing motor (with gears) and batteries to power it. KF and the ME-F are similar in many ways to the system used by Canon in the ill fated Canon T80
Canon T80
The Canon T80 is Canon's first autofocus 35mm single-lens reflex camera. It was introduced in April 1985 and discontinued in June 1986 and is part of the T series of FD mount cameras, and is not compatible with Canon's later EOS system and its autofocus EF-mount lenses. Instead, three special...

, introduced several years later.

The ME F can use all Pentax K-mount lenses except for FAJ lenses, which lack an aperture ring. The 35–70 mm lens can be used on all other Pentax K-mount bodies in manual focus mode, but it must be used stopped down on "crippled" KAF bodies.

KA mount

The KA mount is derived from the original K mount. It allows the lens's aperture
Aperture
In optics, an aperture is a hole or an opening through which light travels. More specifically, the aperture of an optical system is the opening that determines the cone angle of a bundle of rays that come to a focus in the image plane. The aperture determines how collimated the admitted rays are,...

 to be set by the body, and thus permits shutter priority
Shutter priority
Shutter priority refers to a setting on some cameras that allows the user to choose a specific shutter speed while the camera adjusts the aperture to ensure correct exposure...

 and program auto exposure
Exposure (photography)
In photography, exposure is the total amount of light allowed to fall on the photographic medium during the process of taking a photograph. Exposure is measured in lux seconds, and can be computed from exposure value and scene luminance over a specified area.In photographic jargon, an exposure...

 modes. It was introduced in 1983, and is supported by A-series and P-series bodies; Pentax lenses that support it are marked 'SMC Pentax-A'. It is completely backward-compatible with the original K mount.

The aperture on the lens is set from the body by the same stop-down lever found on the original K mount, but on KA lenses this lever is proportional to the area of the aperture opening, rather than the diameter as on previous lenses. This allows the body to easily set a specific aperture, since the relationship to F stops is linear. The lenses add an 'A' setting on the aperture dial, which gives the body control of the aperture. Other, numeric settings are used for manual aperture modes—aperture priority
Aperture priority
Aperture priority, often abbreviated A or Av on a camera mode dial, is a setting on some cameras that allows the user to choose a specific aperture value while the camera selects a shutter speed to match. The camera will ensure proper exposure...

 and full manual mode.

Six electrical contacts are added to the bayonet ring. One is slightly recessed and allows the lens to indicate whether the aperture ring is set at 'A' or not. If it is, a pin on the lens extends slightly and makes contact, while if the lens is at any other setting the pin is retracted and does not make contact. The other five contacts are used to encode the lens's aperture range. Each contact on the lens is either conducting or non-conducting, providing a binary 1 or 0, respectively. Two contacts encode the lens's minimum aperture—, , or ; although no Pentax K-mount lens has ever had an minimum aperture, OEM lenses often have. The other three contacts encode the lens's maximum aperture; their meaning is dependent on the minimum aperture indicated by the lens.

KAF mount

The KAF mount was Pentax's second and much improved attempt at adding auto-focus to lenses. It adds a small drive shaft to the KA mount, allowing the body to adjust the focus of the lens. This makes the lenses less bulky than the earlier KF mount, which had both a motor and batteries inside the lens.

It also adds a seventh electrical contact, this one carrying digital information from the lens to the camera. It carries the following information: focal length, distance to the subject, exact absolute f-stop value, and lens size. This information is used to make better exposure decisions, along with the multi-segmented metering that was introduced in cameras using the KAF mount.

KAF2 mount

The KAF2 mount is the same as the KAF mount except that it adds two extra contacts to the inside of the mounting ring for power zooming, and transmits modulation transfer function
Optical transfer function
The optical transfer function of an imaging system is the true measure of resolution that the system is capable of...

 (MTF) data through the digital seventh contact. On the K10D digital SLR model (and later models like K100D Super, K20D
Pentax K20D
The Pentax K20D and its clone, the Samsung GX-20, were 14.6 megapixel digital single-lens reflex cameras manufactured by Pentax that were announced on January 23, 2008. The K20D was available in the U.S...

, Pentax K-7, Pentax K-5 and K200D
Pentax K200D
The Pentax K200D is a 10.2 megapixel digital single-lens reflex camera, announced on January 24, 2008 along with the higher-end K20D. It was discontinued in December 2008, giving it the distinction of being one of the shortest-lived DSLR cameras....

) the two power contacts can also power Silent Drive Motor
Ultrasonic motor
An ultrasonic motor is a type of electric motor powered by the ultrasonic vibration of a component, the stator, placedagainst another component, the rotor or slider depending on the scheme of operation...

 lenses.

KA2 mount

The KA2 is identical to KAF, but lacks the autofocus drive shaft. Another way of looking at it is that it adds the seventh contact for digital information to the KA mount.

R-K mount

The R-K mount is a variation on the original K mount by Ricoh. It supports Ricoh's own implementation of shutter priority and auto exposure modes, similar to the KA mount but much simpler. The only addition to the original K mount is a small pin at the bottom which tells the body when the aperture ring has been set to the "P" setting (similar to the "A" setting on Pentax KA lenses).

The R-K mount is used on Rikenon P lenses, Ricoh bodies that include the letter 'P' in their model number, and some non-Ricoh lenses. It is compatible with all other K-mount cameras and lenses when in manual or aperture-priority exposure modes, however the extra pin needs to be removed for safe use on autofocus Pentax cameras. If this is not done, the lens may lock on the camera body and will need dismantling before it can be removed from the body of Pentax autofocus cameras. The 'P' setting is not compatible with the 'A' setting as the 'P' pin is in a different location than the 'A' contact on Pentax 'A' lenses and the flange on Pentax bodies.

L39 / LTM

Adaptors can be found to allow use of lenses with Leica M39 thread (screw) mount. If a lens originally intended for Leica Rangefinder cameras is used, focusing is limited to about 10cms. However, some SLR lenses were made in LTM 39 mount, mostly by KMZ for use in the early Zenit SLRs which had LT 39 mounts. These "Zenit" TM 39 lenses will focus properly. Or these lenses can be used in conjunction with the M42 to LTM 39 adapter.

M39

Adaptors can be found to allow use of a non-Leica 39mm mount into the k mount, typically as a M39-M42 adapter ring that is mounted in a M42-PK adapter; they may focus to infinity.

M42

Pentax supplies adapters to fit M42
M42 lens mount
The M42 lens mount is a screw thread mounting standard for attaching lenses to 35 mm cameras, primarily single-lens reflex models. It is more accurately known as the M42 × 1 mm standard, which means that it is a metric screw thread of 42 mm diameter and 1 mm thread pitch...

 screw-mount lenses, as do several third-party manufacturers. The M42 screw-mount system was used by Pentax prior to the introduction of the K mount. Pentax designed the K-mount wide enough to allow an adapter to fit between the M42 thread and the K bayonet. They also kept the same flange focal distance
Flange focal distance
For an interchangeable lens camera, the flange focal distance of a lens mount system is the distance from the mounting flange to the...

 (also called registration distance or register) as the M42 screw mount, so that M42 lenses focus correctly using the correct adapter (such as Pentax original or Bower). There are however other third-party adapters that add to the flange focal distance
Flange focal distance
For an interchangeable lens camera, the flange focal distance of a lens mount system is the distance from the mounting flange to the...

 so that one loses the ability to focus to infinity. The loss of infinity-focus may not be significant in macro or close-up photography.

There is great debate in the Pentax community over the applicability and safety of adapters other than those supplied by Pentax. Many users of third-party infinity-focus adapters, such as Bowers, report difficulty in removing the adapters from camera bodies. Such adapters may require modification before they may be safely used. Official Pentax adapters, and flanged non-infinity-focus adapters, do not provoke such problems.

Many old M42 lenses have a modern-day cult reputation, including the (Pentax) Asahi Takumar
Takumar
Takumar is the name that Asahi Optical gave to its lenses, notably but not exclusively those for its own SLR cameras. Named after the Japanese-American portrait painter, , whose brother Kumao Kajiware founded Asahi Optical, the name adorned its lenses until 1975, when Asahi switched from the M42...

 range. Some manufacturers, including Carl Zeiss AG, still make lenses in the M42 mount. Only K-mount cameras have the right flange focal distance
Flange focal distance
For an interchangeable lens camera, the flange focal distance of a lens mount system is the distance from the mounting flange to the...

 (45.46mm) to accept old M42 lenses without any optical correction or loss of infinity focus/changed close focus distance. Other SLRs with smaller flange focal distance
Flange focal distance
For an interchangeable lens camera, the flange focal distance of a lens mount system is the distance from the mounting flange to the...

 can also accept M42 lenses with dedicated adapters: Canon EOS (44mm), Olympus 4/3rd (38.67mm), Sony (same mount as Konica-Minolta/Minolta, 44.5mm), Sigma (44mm), and other companies, but significantly not Nikon (46.5mm).

Voigtlander Bessamatic Retina

Adapter for Voigtlander Bessamatic Retina lenses, Voigtlander Bessamatic, Voigtlander Ultramatic, Kodak Retina SLR, or Kodak iiis lenses.

Petri

There is also some Petri
Petri Camera
The Camera Company was an optical company and manufacturer of cameras in Japan. It was founded in 1907. Prior to World War II, it was known as Kuribayashi Shashin Kōgyō or Kuribayashi Camera Industry, inc. Japan...

 adapter to K mount but those do not allow to focus to infinity due to the different flange-to-film-plane distance.

Medium Format

Pentax made adapters for its medium-format lenses to use on the K-mount, both the 645 and 6×7, and for the Hasselblad Bayonet type. Also there is a Pentacon-Six (Kiev88 CM) adapter still in production and a shift adapter to use Pentacon lenses as shift lens.
  • Pentax 645
  • Pentax 6×7
  • Hasselblad Bayonet type
  • Pentacon Six
  • Mamiya 645

S-mount and T-Mount

Mounts used for Telescopes, microscopes and generic optics. The T-mount
T-mount
T-mount is a standard lens mount for cameras and other optical assemblies.The T2 version is a screw mount using a male M42x0.75 metric thread on the lens with a flange focal distance of 55 mm, and a mating female thread on a camera adapter or other optical component. This thread form is referred...

 was initially developed by Tamron
Tamron
is a Japanese company manufacturing photographic lenses, optical components and commercial/industrial-use optics. Tamron Headquarters is located in Saitama City in the Saitama Prefecture of Japan....

 (1957) to allow the easy adaption of generic 35mm SLR optics into multiple mounts. The T-mount is a 42mm diameter 0.75mm pitch screw mount with a 55mm flange focal distance
Flange focal distance
For an interchangeable lens camera, the flange focal distance of a lens mount system is the distance from the mounting flange to the...

. Later versions (T2, T4, TX) were more advanced and complex. Several other manufacturers besides Tamron have used these mounts. Because the T-mount is still used for many telescopes and microscopes, they are still available new. Note: do not confuse the T-mount (M42x0.74) and the M42 mount (M42x1.0) lenses or adapters. They are both screw mounts of the same diameter, and will mount if they are forced, but the difference in pitch can cause damage to the lens, adapter or camera mount if they are confused!

Adaptall

These are adaptors designed by Tamron to allow the transfer of apperture setting from lens to camera or vice verse, including the Adapt-A-matic (1969), Adaptall (1973) and Adaptall-2 (1979). When Pentax introduced the KA mount in 1983 Tamron upgraded their Adaptall-2 K mount into a Adaptall-2 KA mount. For more details see the Tamron
Tamron
is a Japanese company manufacturing photographic lenses, optical components and commercial/industrial-use optics. Tamron Headquarters is located in Saitama City in the Saitama Prefecture of Japan....

 article or the Adaptall-2 web site.

Adaptors for other cameras to use K-mount

  • Olympus FourThirds
  • Canon EF (EOS)
  • Minolta MA (Sony Alpha)
  • Leica Screw Mount M39
  • Samsung NX Mount
  • Sony NEX E Mount

Pentax
Pentax
Pentax is a brand name used by Hoya Corporation for its medical-related products & services and Pentax Ricoh Imaging Company for cameras, sport optics , etc. Hoya purchased and merged with the Japanese optics company on March 31, 2008. Hoya's Pentax imaging business was sold to Ricoh Company, Ltd...

Manual focus
  • K - K2, KX, KM, K1000
    Pentax K1000
    The Pentax K1000 is an interchangeable lens, 35 mm film, single-lens reflex camera, manufactured by Asahi Optical Co., Ltd. from 1976 to 1997, originally in Japan. It uses a horizontal travel, rubberized silk cloth focal plane shutter with a speed range of 1/1000 second to 1 second, along with...

    , K1000 SE
  • K - ME, ME SE, ME Super
    Pentax ME Super
    The Pentax ME Super was a highly successful 35 mm single-lens reflex camera produced by Pentax of Japan between 1979 and 1984.The camera was a development of the Pentax ME...

    , ME Super SE, MG, MV, MV1, MX
    Pentax MX
    The Pentax MX was a 35 mm single-lens reflex camera produced by Asahi Optical Co, later Pentax of Japan between 1976 and 1985.It was Pentax's flagship professional SLR until the introduction of the Pentax LX. Internally, the MX is essentially a smaller, lighter version of the Pentax KX, and...

  • K - LX
    Pentax LX
    The Pentax LX is a 35 mm Single-lens reflex camera produced by Pentax in Japan between 1980 and 2001. The lens mount is the Pentax K mount, allowing the use of almost all Pentax 35 mm format lenses, those made before 1975 using a screw-mount adapter with limited automatic functionality. ...

  • KA - Super A, Program A, A3
  • KA - P3, P5, P30, P30n, P30t
  • KA2 - MZ-M


Auto focus
  • KF - ME F
  • KAF - SFX, SFXn, SF7, MZ-6, MZ-7
  • KAF2 - Z-1, Z-5, Z-10, Z-20, Z-50, Z-70
  • KAF2 - MZ-S
    Pentax MZ-S
    The Pentax MZ-S is a 35mm single-lens reflex camera from Pentax of Japan. It was introduced in 2001and discontinued in February 2006.It is closely related to the prototype MZ-D Full-frame digital SLR, which never entered production....

    , MZ-3, MZ-5, MZ-5n, MZ-10

  • "crippled" KAF - MZ-30, MZ-50, MZ-60, *istD, *istDS(2), *istDL(2), K100D, K110D
  • "crippled" KAF2 - K10D
    Pentax K10D
    The Pentax K10D and similar Samsung GX-10 are 10.2 megapixel digital single-lens reflex cameras launched in late 2006. They were developed in a collaboration between Pentax of Japan and Samsung of Korea....

    , K100D Super, K20D
    Pentax K20D
    The Pentax K20D and its clone, the Samsung GX-20, were 14.6 megapixel digital single-lens reflex cameras manufactured by Pentax that were announced on January 23, 2008. The K20D was available in the U.S...

    , K200D
    Pentax K200D
    The Pentax K200D is a 10.2 megapixel digital single-lens reflex camera, announced on January 24, 2008 along with the higher-end K20D. It was discontinued in December 2008, giving it the distinction of being one of the shortest-lived DSLR cameras....

    , K2000 (K-m)
    Pentax K2000
    The Pentax K-m is a 10.2 megapixel digital single-lens reflex camera, announced on September 22, 2008 at the 2008 Photokina trade show along with the DA-L series of lightweight, inexpensive lenses. It was discontinued in November of 2009, being replaced by the more recent Pentax K-x.The K-m is...

    , K-7
    Pentax K-7
    The Pentax K-7 is a 14.6-megapixel digital single-lens reflex camera, announced on 20 May 2009. This is the first new flagship model released by Pentax since its merger with Hoya Corporation on 31 March 2008.- Features :...

    , K-x
    Pentax K-x
    The Pentax K-x is a 12.4 megapixel digital single-lens reflex camera, announced on September 16, 2009. Pentax K-x uses an Exmor, Sony-made sensor . In some cases it even approaches the quality produced by full-frame DSLRs like the Nikon D700 and the Canon 5DMkII, both with larger sensors...

    , K-r
    Pentax K-r
    The Pentax K-r is a 12.4-megapixel digital single-lens reflex camera, announced on September 9, 2010. The K-r is available in 3 body colors in North America, with other colors available only in the Japanese market. The K-r introduces a new SAFOX IX autofocus system and has a 3-inch...

    , K-5
    Pentax K-5
    The Pentax K-5 is a 16.3-megapixel digital single-lens reflex camera, announced on 20 September 2010. It began shipping in mid-October 2010.Externally, the camera body is almost unchanged from the Pentax K-7...


Chinon
Chinon Industries
was a Japanese camera manufacturer. Kodak took a majority stake in the company in 1997, and made it a fully owned subsidiary of Kodak Japan, , in 2004 . As a subsidiary, it continues to develop digital camera models....

 

  • CE-4, CE-4s, CA-4, CM-4
  • CE-5, CG-5, CM-5, CP-5
  • CP-6, CP-X
  • CP-7m, CM-7
  • CP-9AF

Cosina
Cosina
is a designer and manufacturer of cameras and lenses, and a glassmaker, based in Nakano, Nagano Prefecture, Japan.-History:Cosina is the successor to Nikō , a company set up as a manufacturer oflenses in 1959...

 

  • C1, C1s
  • CS-2, CS-3
  • CT-10, CT-1A, CT-20, CT-7, CT-1G, CT-9
  • CE-4, CE-4s, CE-5

Ricoh
Ricoh
or Ricoh, is a Japanese company that was established in 1936 on February 6th, as , a company in the RIKEN zaibatsu. Its headquarters is located in Ricoh Building in Chūō, Tokyo....

 

  • KR-5, KR-5 Super, KR-5 Super II, KR-5 III, KR-10, KR-10 Super, KR-30sp
  • XR-1, XR-1s, XR-2, XR-2s, XR-500, XR500 auto, XR-6, XR-7, XR-10, XR-P, XR-20sp, XR-Solar, XR-M, XR-F, XR-P, XR-S, XR-X, XR-X 3PF

Samsung
Samsung
The Samsung Group is a South Korean multinational conglomerate corporation headquartered in Samsung Town, Seoul, South Korea...

 

  • "crippled" KAF - GX-1S, GX-1L
  • "crippled" KAF2 - GX-10, GX-20

Sears
Sears, Roebuck and Company
Sears, officially named Sears, Roebuck and Co., is an American chain of department stores which was founded by Richard Warren Sears and Alvah Curtis Roebuck in the late 19th century...

 

A lot of Sears cameras were made by Ricoh and use the Pentax K mount. Some are simply rebadged Ricoh models, while others are quite different.
  • KS-1000 (Ricoh XR-1)
  • KS-500 (Ricoh XR-500)
  • KS Auto (Ricoh XR-2S)
  • KS-1
  • KS-2 (Ricoh XR-7)
  • KSX (Ricoh KR-10)
  • KS Super
  • KS Super II

Vivitar
Vivitar
Vivitar Corporation was a manufacturer, distributor and marketer of photographic and optical equipment originally based in Oxnard, California. Since 2008 the Vivitar name serves as Sakar International's photographic and optical equipment brand.-Products:...

 

  • V4000
  • V3800N
  • V3000N
  • V3000s
  • V2000
  • XV1 (rebadged Cosina CT-1)
  • XV20 (rebadged Cosina CT-20)

Zenit
Zenit (camera)
Zenit is a Russian camera brand manufactured by KMZ in the town of Krasnogorsk near Moscow since 1952 and by BelOMO in Belarus since the 1970s. The Zenit trademark is associated with 35mm SLR cameras...

 

  • Automat, 20, 21, 22, 14, photosniper FS-5
  • AM, AM2, AP, 2000, APK, KM, 122K, 212K

List of Lenses with any K-Mount Variant

Angenieux

Angenieux is the best lens manufacturer in France
France
The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

, it is mainly known for its movie equipment than for photographic lenses, but it has built some of the best optics for Leica, Nikon
Nikon
, also known as just Nikon, is a multinational corporation headquartered in Tokyo, Japan, specializing in optics and imaging. Its products include cameras, binoculars, microscopes, measurement instruments, and the steppers used in the photolithography steps of semiconductor fabrication, of which...

, Canon and a few K mount lenses. Their production is limited, but their quality is among the best.
  • Angenieux 70-210mm f3.5

Arsat

Arsat is a trade mark of Ukrainian lens manufacturer Arsenal, Kiev.
  • PCS Arsat 35mm f2.8 Shift Lens

Beroflex

Beroflex seems to have been a German commercial firm of photographic lenses, not too much information is available yet but it looks like provided German designed lens made overseas by Japanese companies like Soligor
Soligor
Soligor was originally the trade mark for the American Allied Impex Corporation, used from 1956 for lenses and later cameras imported from Japan. It imported cameras from Japan and also took control of companies in Japan...

.
  • Beroflex 85-210mm f3.8
  • Beroflex 500mm f8/f22 lens, 5 degree view ; 72mm diameter x 42mm. Adapter fitted for use on M42 screw thread. In 1975,came complete with lens caps and case.

Carl Zeiss Jena

Carl Zeiss Jena history can be found on the article on Wikipedia for Zeiss, here is the list of the known lenses on k mount for it. Although marketed by the Carl Zeiss Jena (East German) sales network, this lenses were made by Sigma in Japan. The "real" 35mm East German made Carl Zeiss Jena Lenses where available at the same time but only in Praktica B mount.
  • Carl Zeiss Jena 20mm f4 (zebra)
  • Carl Zeiss Jena II 24mm f2.8
  • Carl Zeiss Jena 28mm f2.8
  • Carl Zeiss Jena 28-70mm f2.8-4.3 Macro Jenazoom
  • Carl Zeiss Jena 70-210mm f4.5-5.6 Macro
  • Carl Zeiss Jena 75-300mm f4.5-5.6 ED IF MC Macro Jenazoom
  • Carl Zeiss Jena 100-500mm f5.6-8 MC Macro Jenazoom (72mm filter)

Carl Zeiss

Carl Zeiss is one of the most prestigious names on the photographic world, it has re-launched its line of lenses for the k-mount strongly on 2008, mainly due to the growing popularity of both Pentax
Pentax
Pentax is a brand name used by Hoya Corporation for its medical-related products & services and Pentax Ricoh Imaging Company for cameras, sport optics , etc. Hoya purchased and merged with the Japanese optics company on March 31, 2008. Hoya's Pentax imaging business was sold to Ricoh Company, Ltd...

 and Samsung
Samsung
The Samsung Group is a South Korean multinational conglomerate corporation headquartered in Samsung Town, Seoul, South Korea...

 digital SLR
SLR
The initialism SLR can refer to:* Satellite laser ranging* Scalable Linear Recording Tape Drive Backup* Self-Loading Rifle, see semi-automatic rifle.** The UK version of the Belgian FN FAL select fire battle rifle, the L1A1 SLR.* Semi-linear resolution...

's.
Carl Zeiss announced September 2010 that the ZK lenses would be discontinued fall 2010. http://www.zeiss.com/C1256A770030BCE0/WebViewTopNewsAllE/8E06D1CFA00E171BC12577A600262035?OpenDocument
  • Carl Zeiss 18mm f3.5 Distagon T* (June 2008)
  • Carl Zeiss 21mm f2.8 Distagon T* (September 2008)(Europe Only)
  • Carl Zeiss 25mm f2.8 Distagon T* ZK(2008)
  • Carl Zeiss 35mm f2 Distagon T* ZK(2008)
  • Carl Zeiss 50mm f1.4 Planar T* ZK (2008)
  • Carl Zeiss 50mm f2 Planar T* ZK (2008)
  • Carl Zeiss 50mm f2 Makro-Planar T* (August 2008)
  • Carl Zeiss 85mm f1.4 Planar T* ZK(2008)

Chinon
Chinon Industries
was a Japanese camera manufacturer. Kodak took a majority stake in the company in 1997, and made it a fully owned subsidiary of Kodak Japan, , in 2004 . As a subsidiary, it continues to develop digital camera models....

 

  • Chinon
    Chinon Industries
    was a Japanese camera manufacturer. Kodak took a majority stake in the company in 1997, and made it a fully owned subsidiary of Kodak Japan, , in 2004 . As a subsidiary, it continues to develop digital camera models....

     24mm f2.5
  • Chinon
    Chinon Industries
    was a Japanese camera manufacturer. Kodak took a majority stake in the company in 1997, and made it a fully owned subsidiary of Kodak Japan, , in 2004 . As a subsidiary, it continues to develop digital camera models....

     28mm f2.8
  • Chinon
    Chinon Industries
    was a Japanese camera manufacturer. Kodak took a majority stake in the company in 1997, and made it a fully owned subsidiary of Kodak Japan, , in 2004 . As a subsidiary, it continues to develop digital camera models....

     35mm f2.8 AUTO CHINON MULTI-COATED (49mm filter)
  • Chinon
    Chinon Industries
    was a Japanese camera manufacturer. Kodak took a majority stake in the company in 1997, and made it a fully owned subsidiary of Kodak Japan, , in 2004 . As a subsidiary, it continues to develop digital camera models....

     35-70mm f3.3-4.5 MC Auto Focus (52mm filter)
  • Chinon
    Chinon Industries
    was a Japanese camera manufacturer. Kodak took a majority stake in the company in 1997, and made it a fully owned subsidiary of Kodak Japan, , in 2004 . As a subsidiary, it continues to develop digital camera models....

     35-70mm f3.5-4.5 MC Macro (55mm filter)
  • Chinon
    Chinon Industries
    was a Japanese camera manufacturer. Kodak took a majority stake in the company in 1997, and made it a fully owned subsidiary of Kodak Japan, , in 2004 . As a subsidiary, it continues to develop digital camera models....

     35-80mm f3.5-4.9 MC Macro
  • Chinon
    Chinon Industries
    was a Japanese camera manufacturer. Kodak took a majority stake in the company in 1997, and made it a fully owned subsidiary of Kodak Japan, , in 2004 . As a subsidiary, it continues to develop digital camera models....

     45mm f2.8 Auto Multicoated
  • Chinon
    Chinon Industries
    was a Japanese camera manufacturer. Kodak took a majority stake in the company in 1997, and made it a fully owned subsidiary of Kodak Japan, , in 2004 . As a subsidiary, it continues to develop digital camera models....

     50mm f1.4 Auto Multicoated
  • Chinon
    Chinon Industries
    was a Japanese camera manufacturer. Kodak took a majority stake in the company in 1997, and made it a fully owned subsidiary of Kodak Japan, , in 2004 . As a subsidiary, it continues to develop digital camera models....

     50mm f1.7 Auto Multicoated
  • Chinon
    Chinon Industries
    was a Japanese camera manufacturer. Kodak took a majority stake in the company in 1997, and made it a fully owned subsidiary of Kodak Japan, , in 2004 . As a subsidiary, it continues to develop digital camera models....

     50mm f1.7 Auto Multicoated Auto Focus (58mm filter)
  • Chinon
    Chinon Industries
    was a Japanese camera manufacturer. Kodak took a majority stake in the company in 1997, and made it a fully owned subsidiary of Kodak Japan, , in 2004 . As a subsidiary, it continues to develop digital camera models....

     50mm f1.9 Auto (52mm filter)
  • Chinon
    Chinon Industries
    was a Japanese camera manufacturer. Kodak took a majority stake in the company in 1997, and made it a fully owned subsidiary of Kodak Japan, , in 2004 . As a subsidiary, it continues to develop digital camera models....

     135mm f2.8 Auto Multicoated
  • Chinon
    Chinon Industries
    was a Japanese camera manufacturer. Kodak took a majority stake in the company in 1997, and made it a fully owned subsidiary of Kodak Japan, , in 2004 . As a subsidiary, it continues to develop digital camera models....

     200mm f3.3 Auto Multicoated
  • Chinon
    Chinon Industries
    was a Japanese camera manufacturer. Kodak took a majority stake in the company in 1997, and made it a fully owned subsidiary of Kodak Japan, , in 2004 . As a subsidiary, it continues to develop digital camera models....

     Makinon 500mm f8 Catadioptric
    Catadioptric
    A catadioptric optical system is one where refraction and reflection are combined in an optical system, usually via lenses and curved mirrors . Catadioptric combinations are used in focusing systems such as search lights, headlamps, early lighthouse focusing systems, optical telescopes,...


Cima Kogaku

Cima Kogaku had a patented system that allowed them to build common lens bodies, and add the appropriate lens mount at the factory. The Pentax version was only K mount, not KA mount. They mostly sold their lenses on an OEM basis, with them sold under a variety of different brands. In the UK, they were sold by Photax as Super-Paragon PMC lenses. Tokyo Kogaku sold them as AM Topcor lenses for their Topcon
Topcon
Topcon is a Japanese manufacturer of optical equipment for ophthalmology and surveying. Their headquarters are in Itabashi, Tokyo. They are affiliated with Toshiba, which holds 40% of Topcon's stock.-History of Topcon:...

 RM300 camera. Cima Kogaku also sold them directly under the Cimko brand. (Some of the lenses below may not have ever been sold under the Cimko brand.)
  • Cimko MT 24mm f2.8
  • Cimko MT 28mm f2.8
  • Cimko MT 35mm f2.8
  • AM Topcor 55mm f1.7
  • Cimko MT 135mm f2.8
  • Cimko MT 200mm f3.3
  • Cimko MT 28-50mm f3.5-4.5 (two touch)
  • Cimko MT 28-50mm f3.5-4.5 (one touch)
  • Cimko MT 35-100mm f3.5-4.3
  • Cimko MT 55-230mm f3.5-4.5
  • Cimko MT 70-200mm f3.8-4.8
  • Cimko MT 80-200mm f3.8
  • Cimko MT 80-200mm f4.5

Cosina

  • Cosina
    Cosina
    is a designer and manufacturer of cameras and lenses, and a glassmaker, based in Nakano, Nagano Prefecture, Japan.-History:Cosina is the successor to Nikō , a company set up as a manufacturer oflenses in 1959...

     19-35mm f3.5-4.5 AF
  • Cosina
    Cosina
    is a designer and manufacturer of cameras and lenses, and a glassmaker, based in Nakano, Nagano Prefecture, Japan.-History:Cosina is the successor to Nikō , a company set up as a manufacturer oflenses in 1959...

     24mm f2.8 MC macro (KA mount)
  • Cosina
    Cosina
    is a designer and manufacturer of cameras and lenses, and a glassmaker, based in Nakano, Nagano Prefecture, Japan.-History:Cosina is the successor to Nikō , a company set up as a manufacturer oflenses in 1959...

     28mm f2.8 macro (KA mount)
  • Cosina
    Cosina
    is a designer and manufacturer of cameras and lenses, and a glassmaker, based in Nakano, Nagano Prefecture, Japan.-History:Cosina is the successor to Nikō , a company set up as a manufacturer oflenses in 1959...

     28-210mm f4.2-6.5 Aspherical AF
  • Cosina
    Cosina
    is a designer and manufacturer of cameras and lenses, and a glassmaker, based in Nakano, Nagano Prefecture, Japan.-History:Cosina is the successor to Nikō , a company set up as a manufacturer oflenses in 1959...

     28-210mm f3.5 Aspherical AF
  • Cosina
    Cosina
    is a designer and manufacturer of cameras and lenses, and a glassmaker, based in Nakano, Nagano Prefecture, Japan.-History:Cosina is the successor to Nikō , a company set up as a manufacturer oflenses in 1959...

     28 mm f2.8
  • Cosina
    Cosina
    is a designer and manufacturer of cameras and lenses, and a glassmaker, based in Nakano, Nagano Prefecture, Japan.-History:Cosina is the successor to Nikō , a company set up as a manufacturer oflenses in 1959...

     35-70mm f3.5-4.8
  • Cosina
    Cosina
    is a designer and manufacturer of cameras and lenses, and a glassmaker, based in Nakano, Nagano Prefecture, Japan.-History:Cosina is the successor to Nikō , a company set up as a manufacturer oflenses in 1959...

     40mm f2.5
  • Cosina
    Cosina
    is a designer and manufacturer of cameras and lenses, and a glassmaker, based in Nakano, Nagano Prefecture, Japan.-History:Cosina is the successor to Nikō , a company set up as a manufacturer oflenses in 1959...

     50mm f1.2
  • Cosina
    Cosina
    is a designer and manufacturer of cameras and lenses, and a glassmaker, based in Nakano, Nagano Prefecture, Japan.-History:Cosina is the successor to Nikō , a company set up as a manufacturer oflenses in 1959...

     55mm f1.2
  • Cosina
    Cosina
    is a designer and manufacturer of cameras and lenses, and a glassmaker, based in Nakano, Nagano Prefecture, Japan.-History:Cosina is the successor to Nikō , a company set up as a manufacturer oflenses in 1959...

     100mm f3.5 AF macro
  • Cosina
    Cosina
    is a designer and manufacturer of cameras and lenses, and a glassmaker, based in Nakano, Nagano Prefecture, Japan.-History:Cosina is the successor to Nikō , a company set up as a manufacturer oflenses in 1959...

     100-300mm f5.6 AF macro
  • Cosina
    Cosina
    is a designer and manufacturer of cameras and lenses, and a glassmaker, based in Nakano, Nagano Prefecture, Japan.-History:Cosina is the successor to Nikō , a company set up as a manufacturer oflenses in 1959...

     135mm 1:2,8 MC

Cosmicar

Cosmicar is a division of Pentax, it commercialized video lenses, but some were released for the k mount.
  • Cosmicar 28-80mm f3.5-4.5
  • Cosmicar 70-200mm f4

CPC

CPC Lenses are also known as Phase 2 or Phase 2 CCT.
  • CPC 28mm f2.8 Auto A (52mm filter)
  • CPC 28-80 f2.8-4.0 (62mm filter)
  • CPC 28-80mm f3.5-4.5
  • CPC 28-85mm f3.5-4.5
  • CPC 135mm f2.8 MC Auto A (55mm filter)

Focal

  • Focal 28mm f2.8 MC Auto (52mm filter)
  • Focal 28mm f2.8 MC Auto (55mm filter)
  • Focal 135mm f2.8 MC Auto (58mm filter)

Hanimex

Hanimex was an Australian distributor founded by Jack Hannes after the Second World War. The name is a contraction of HANnes IMport and EXport and the company imported both European and Japanese lenses, bodies and accessories. Hannes apparently sought low cost providers and Hanimex lenses have a poor reputation among users.
  • Hanimex AUTO ZOOM f3.5-4.5
  • Hanimex AUTOMATIC-MC-MACRO 135 f2.8

Helios

Made for the Zenit cameras by KMZ
  • Helios 44K-4 58mm f2 (52mm filter)
  • Helios 77K-4 50mm f1.8

Hoya

Hoya
Hoya Corporation
is a Japanese company leading in manufacturing of optical products including photomasks, photomask blanks and glass magnetic-memory disks, contact lenses and eyeglass lenses using the wavefront technology, Photonics...

, a leading manufacturer of optical glass, purchased Pentax in 2008.
  • Hoya 28mm f2.8 HMC (52mm filter)
  • Hoya 28-50mm f3.5-4.5 HMC (55mm filter)
  • Hoya 28-85mm f4 HMC (72mm filter)
  • Hoya 70-150mm f3.8 HMC (55mm filter)
  • Hoya 100-300mm f5 macro HMC (62mm filter)
  • Hoya 135mm f2.8 macro HMC (52mm filter)

Kalimar

Kalimar was an American distributor of camera equipment from 1952 to 1999 when it was acquired by Tiffen
Tiffen
Tiffen Manufacturing Corporation is a company in Hauppauge, New York, U.S.A. which manufactures filters for photography, and other professional film and photography-related products. Founded in 1945, by Sol Tiffen, the company has won several Academy Awards for technical achievements infiltration...

, information on lenses and manufacturers is difficult to obtain as it sell rebadged cameras and lenses from the former Soviet Union
Soviet Union
The Soviet Union , officially the Union of Soviet Socialist Republics , was a constitutionally socialist state that existed in Eurasia between 1922 and 1991....

 and Japan
Japan
Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

 and sell it under its own name in the U.S..
  • Kalimar 28mm f2.8 Macro (52mm filter)
  • Kalimar 28-105mm f3.5-4.5 Macro
  • Kalimar 35-70mm f2.8
  • Kalimar 60-300mm f4-5.6 MC AF (67mm filter)
  • Kalimar 500mm f8 (72mm filter)(catadioptric
    Catadioptric
    A catadioptric optical system is one where refraction and reflection are combined in an optical system, usually via lenses and curved mirrors . Catadioptric combinations are used in focusing systems such as search lights, headlamps, early lighthouse focusing systems, optical telescopes,...

    )

Kiron

Kiron was a third party lens manufacturer, it manufactured lenses for other mounts as well on the decade of 1980-1990
  • Kiron
    Kiron Lenses
    Kiron Lenses were photographic lenses distributed by the Kiron Corporation, formerly based in Carson, California, USA.-History:The company was set up as a U.S. subsidiary of Kino Precision Industries Limited, Tokyo, Japan and registered as a trademark on Jan 25 1980, in order to market...

     24mm f2 RL
  • Kiron
    Kiron Lenses
    Kiron Lenses were photographic lenses distributed by the Kiron Corporation, formerly based in Carson, California, USA.-History:The company was set up as a U.S. subsidiary of Kino Precision Industries Limited, Tokyo, Japan and registered as a trademark on Jan 25 1980, in order to market...

     28mm f2
  • Kiron
    Kiron Lenses
    Kiron Lenses were photographic lenses distributed by the Kiron Corporation, formerly based in Carson, California, USA.-History:The company was set up as a U.S. subsidiary of Kino Precision Industries Limited, Tokyo, Japan and registered as a trademark on Jan 25 1980, in order to market...

     28-70mm f4 Macro (1:4)

Lomo

Lomo is a Russian photographic manufacturer, it made some lenses for the Almaz camera on k mount, but caution must be used as the Almaz version has some differences with the standard k mount
  • Volna-10K 35mm f1.8
  • Volna 50mm f1.8, kit lens for Almaz-103 kamera.

Lester A. Dine

  • Lester A. Dine Kiron 105mm f2.8 macro (52mm filter)

One of the best macro lens ever made

Lensbaby

  • Lensbaby 1.0 Selective Focus Lens (2006–2008) (
  • Lensbaby 2.0 Selective Focus Lens (2008)
  • Lensbaby Muse Double Glass Optic
  • Lensbaby Muse Plastic Optic
  • Lensbaby Composer
  • Lensbaby Scout with Fisheye Optic
  • Lensbaby Control Freak

Loreo

  • Loreo
    Loreo
    Loreo is a manufacturer of stereo photography equipment, including 3D cameras and stereo lens attachments for SLR cameras. Stereo pictures taken using Loreo systems are instantly viewable using 3D viewers without any cutting or remounting. These stereophotos are in the same format and size as any...

     35 mm f11-22 Shift lens (Lens-In-A-Cap)
  • Loreo
    Loreo
    Loreo is a manufacturer of stereo photography equipment, including 3D cameras and stereo lens attachments for SLR cameras. Stereo pictures taken using Loreo systems are instantly viewable using 3D viewers without any cutting or remounting. These stereophotos are in the same format and size as any...

     38 mm f11 3D (Stereo) (2006–Present)

Luxon

Luxon is a Chinese manufacturer, and there is little information available on the company or its products.
  • Luxon 50mm f2.0 MC (China)

Miranda

  • Miranda
    Miranda Camera Company
    The Miranda Camera Company, originally named the Orion Camera Company, manufactured cameras in Japan between 1955 and 1978. Their first camera was the Miranda T. Many of their products were single-lens reflex cameras for 135 film...

     28mm f2.8 (49mm filter)
  • Miranda
    Miranda Camera Company
    The Miranda Camera Company, originally named the Orion Camera Company, manufactured cameras in Japan between 1955 and 1978. Their first camera was the Miranda T. Many of their products were single-lens reflex cameras for 135 film...

     28mm f2.8 MC (55mm filter)
  • Miranda
    Miranda Camera Company
    The Miranda Camera Company, originally named the Orion Camera Company, manufactured cameras in Japan between 1955 and 1978. Their first camera was the Miranda T. Many of their products were single-lens reflex cameras for 135 film...

     50mm f2 (49mm filter)
  • Miranda
    Miranda Camera Company
    The Miranda Camera Company, originally named the Orion Camera Company, manufactured cameras in Japan between 1955 and 1978. Their first camera was the Miranda T. Many of their products were single-lens reflex cameras for 135 film...

     70-210mm f4 Macro (52mm filter)
  • Miranda
    Miranda Camera Company
    The Miranda Camera Company, originally named the Orion Camera Company, manufactured cameras in Japan between 1955 and 1978. Their first camera was the Miranda T. Many of their products were single-lens reflex cameras for 135 film...

     70-210mm f4.5 Macro
  • Miranda
    Miranda Camera Company
    The Miranda Camera Company, originally named the Orion Camera Company, manufactured cameras in Japan between 1955 and 1978. Their first camera was the Miranda T. Many of their products were single-lens reflex cameras for 135 film...

     75-200mm f4.5-5.3 Macro (52mm filter)

Makinon

Makinon lenses were made by Makina Optical in Japan.
  • Makinon MC Reflex 500mm f8 Macro (Catadioptric
    Catadioptric
    A catadioptric optical system is one where refraction and reflection are combined in an optical system, usually via lenses and curved mirrors . Catadioptric combinations are used in focusing systems such as search lights, headlamps, early lighthouse focusing systems, optical telescopes,...

    ) (67mm filter)

Petri
Petri Camera
The Camera Company was an optical company and manufacturer of cameras in Japan. It was founded in 1907. Prior to World War II, it was known as Kuribayashi Shashin Kōgyō or Kuribayashi Camera Industry, inc. Japan...

Petri
Petri Camera
The Camera Company was an optical company and manufacturer of cameras in Japan. It was founded in 1907. Prior to World War II, it was known as Kuribayashi Shashin Kōgyō or Kuribayashi Camera Industry, inc. Japan...

 was a Japanese camera manufacturer, which tried to capitalize on the popularity of the k mount lens base and made one camera that used the k mount with one standard lens:
  • Petri
    Petri Camera
    The Camera Company was an optical company and manufacturer of cameras in Japan. It was founded in 1907. Prior to World War II, it was known as Kuribayashi Shashin Kōgyō or Kuribayashi Camera Industry, inc. Japan...

     28mm f2
  • Petri
    Petri Camera
    The Camera Company was an optical company and manufacturer of cameras in Japan. It was founded in 1907. Prior to World War II, it was known as Kuribayashi Shashin Kōgyō or Kuribayashi Camera Industry, inc. Japan...

     50mm f2
  • Petri
    Petri Camera
    The Camera Company was an optical company and manufacturer of cameras in Japan. It was founded in 1907. Prior to World War II, it was known as Kuribayashi Shashin Kōgyō or Kuribayashi Camera Industry, inc. Japan...

     135mm f2.8

Peleng

Peleng is a lens manufacturer based on Belarus
Belarus
Belarus , officially the Republic of Belarus, is a landlocked country in Eastern Europe, bordered clockwise by Russia to the northeast, Ukraine to the south, Poland to the west, and Lithuania and Latvia to the northwest. Its capital is Minsk; other major cities include Brest, Grodno , Gomel ,...

, it was founded on the soviet era and releases most of his lenses in then M42
M42
M42 or M-42 may refer to:In science:* Messier 42, a nebula also called the Orion Nebula* the 42nd known Mersenne primeIn transportation:* M-42 , a state highway in Michigan...

  mount, but it has a K mount lens:
  • Peleng 8mm f2.3 (2008)

Pentax

Good sources of information on Pentax K-mount lenses: Bojidar Dimitrov's Pentax K-mount pages, Stans Pentax Photography site, Pentax Forum's lens reviews.
Bold text indicates lenses in current production/stock sale from Pentax.
  • SMC Pentax FISH-EYE 8.4mm f2.8 (fisheye)
  • SMC Pentax-DA 10-17mm f3.5-4.5 ED IF fisheye
  • SMC PENTAX-DA 12-24mm f4 ED AL IF (2007-)
  • SMC Pentax-DA 14mm f2.8 SMC ED IF (2007-)
  • SMC Pentax 15mm f3.5
  • SMC Pentax 15mm f3.5 AL (AL version)
  • SMC Pentax-A 15mm f3.5
  • SMC Pentax-DA 15mm f4 limited ED AL
  • SMC Pentax-A 16mm f2.8 FE (fisheye)
  • SMC PENTAX-DA 16-45mm f4 ED AL (2003-)
  • SMC PENTAX-DA* 16-50mm f2.8 ED AL IF SDM (2007-)
  • SMC Pentax 17mm f4 FE (fisheye)
  • SMC Pentax-F 17-28mm f3.5-4-5 FE (fisheye)
  • SMC Pentax-DA 17-70mm f4 AL IF SDM (2008-)
  • SMC Pentax 18mm f3.5
  • SMC Pentax-FA J 18-35 f4-5.6 AL GC
  • SMC Pentax-DA 18-55mm f3.5-5.6 AL
    Pentax DA 18-55mm lens
    The SMC Pentax-DA 18-55mm f/3.5-5.6 AL lens is a standard zoom lens for the Pentax K mount. It is often sold as a kit lens with Pentax digital SLR cameras and has a 35mm equivalent focal length of 27-82.5mm...

  • SMC Pentax-DA 18-55mm f3.5-5.6 AL II
    Pentax DA 18-55mm lens
    The SMC Pentax-DA 18-55mm f/3.5-5.6 AL lens is a standard zoom lens for the Pentax K mount. It is often sold as a kit lens with Pentax digital SLR cameras and has a 35mm equivalent focal length of 27-82.5mm...

  • SMC Pentax-DA L 18-55mm f3.5-5.6 AL
    Pentax DA 18-55mm lens
    The SMC Pentax-DA 18-55mm f/3.5-5.6 AL lens is a standard zoom lens for the Pentax K mount. It is often sold as a kit lens with Pentax digital SLR cameras and has a 35mm equivalent focal length of 27-82.5mm...

  • SMC Pentax-DA 18-55mm f3.5-5.6 AL WR
    Pentax DA 18-55mm lens
    The SMC Pentax-DA 18-55mm f/3.5-5.6 AL lens is a standard zoom lens for the Pentax K mount. It is often sold as a kit lens with Pentax digital SLR cameras and has a 35mm equivalent focal length of 27-82.5mm...

  • SMC Pentax 18-135mm f3.5-5.6 ED AL IF DC WR
  • SMC Pentax-DA 18-250mm f3.5-6.3 ED AL IF
  • SMC Pentax-A 20mm f2.8
  • SMC Pentax-FA 20mm f2.8
  • SMC Pentax 20mm f4
  • SMC Pentax-M 20mm f4
  • SMC Pentax-FA 20-35mm f4 AL GC
  • SMC Pentax-DA 21mm f3.2 limited AL
  • SMC Pentax-FA* 24mm f2 AL IF
  • SMC Pentax 24mm f2.8
  • SMC Pentax-A 24mm f2.8
  • SMC Pentax 24mm f3.5
  • SMC Pentax-M 24-35mm f3.5
  • SMC Pentax-M 24-50mm f4
  • SMC Pentax-A 24-50mm f4
  • SMC Pentax-F 24-50mm f4
  • SMC Pentax-FA 24-90mm f3.5-4.5 AL IF GC (2001–2004)
  • SMC Pentax 28mm f2
  • SMC Pentax-M 28mm f2
  • SMC Pentax-A 28mm f2
  • SMC Pentax-M 28mm f2.8 (version 1)
  • SMC Pentax-M 28mm f2.8 (version 2)
  • SMC Pentax-A 28mm f2.8
  • SMC Pentax-F 28mm f2.8
  • SMC Pentax-FA 28mm f2.8
  • SMC Pentax-FA 28mm f2.8 soft
  • SMC Pentax 28mm f3.5
  • SMC Pentax-M 28mm f3.5
  • SMC Pentax 28mm f3.5 shift lens
  • SMC Pentax 28-50mm f3.5-4.5
  • SMC Pentax-M 28-50mm f3.5-4.5
  • SMC Pentax-FA* 28-70mm f2.8 AL PZ
  • SMC Pentax-FA 28-70mm f4 AL
  • SMC Pentax-A 28-80mm f3.5-4.5
  • SMC Pentax-F 28-80mm f3.5-4.5
  • SMC Pentax-FA 28-80mm f3.5-4.7 PZ
  • SMC Pentax-FA 28-80mm f3.5-5.6
  • SMC Pentax-FA 28-80mm f3.5-5.6 AL
  • SMC Pentax-FA J 28-80mm f3.5-5.6 AL
  • SMC Pentax-FA 28-90mm f3.5-5.6
  • SMC Pentax-FA 28-105mm f3.2-4.5 AL IF GC
  • SMC Pentax-FA 28-105mm f4-5.6 AF PZ
  • SMC Pentax-FA 28-105mm f4-5.6 AF IF
  • SMC Pentax-A 28-135mm f4
  • SMC Pentax-FA 28-200mm f3.8-5.6 AL IF
  • SMC Pentax 30mm f2.8
  • SMC Pentax-FA 31mm f1.8 limited AL ED GC (black) (2007-)
  • SMC Pentax-FA 31mm f1.8 limited AL ED GC (chrome) (2007-)
  • SMC Pentax 35mm f2
  • SMC Pentax-M 35mm f2
  • SMC Pentax-A 35mm f2
  • SMC Pentax-FA 35mm f2 AL GC
  • SMC Pentax 35mm f2.4 SMC DA AL
  • SMC Pentax-M 35mm f2.8
  • SMC Pentax-A 35mm f2.8
  • SMC Pentax-DA 35mm f2.8 limited macro
  • SMC Pentax 35mm f3.5
  • SMC Pentax-AF 35-70mm f2.8 (early autofocus lens for Pentax ME-F)
  • SMC Pentax-M 35-70mm f2.8-3.5
  • SMC Pentax-A 35-70mm f3.5-4.5
  • SMC Pentax-F 35-70mm f3.5-4.5
  • SMC Pentax-A 35-70mm f4
  • SMC Pentax-A 35-80mm f4-5.6
  • SMC Pentax-F 35-80mm f4-5.6
  • SMC Pentax-FA 35-80mm f4-5.6
  • SMC Pentax-A 35-105mm f3.5
  • SMC Pentax-F 35-105mm f4-5.6
  • SMC Pentax-A 35-135mm f3.5-4.5
  • SMC Pentax-F 35-135mm f3.5-4.5
  • SMC Pentax-A 35-210mm f3.5-4.5
  • SMC Pentax-M 40mm f2.8 "pancake"
  • SMC Pentax-DA 40mm f2.8 limited "pancake"
  • SMC Pentax-M 40-80mm f2.8-4
  • SMC Pentax-FA 43mm f1.9 limited GC (black)
  • SMC Pentax-FA 43mm f1.9 limited GC (chrome)
  • SMC Pentax 45-125mm f4 (version 1)
  • SMC Pentax 45-125mm f4 (version 2)
  • SMC Pentax 50mm f1.2
  • SMC Pentax 50mm f1.2 gold
  • SMC Pentax-A 50mm f1.2
  • SMC Pentax-A 50mm f1.2 special
  • SMC Pentax 50mm f1.4
  • SMC Pentax-M 50mm f1.4
  • SMC Pentax-A 50mm f1.4
  • SMC Pentax-F 50mm f1.4
  • SMC Pentax-FA 50mm f1.4
  • SMC Pentax-M 50mm f1.7
  • SMC Pentax-A 50mm f1.7
  • SMC Pentax-F 50mm f1.7
  • SMC Pentax-FA 50mm f1.7
  • SMC Pentax-M 50mm f2
  • SMC Pentax-A 50mm f2
  • SMC Pentax-A 50mm f2.8 macro 1:2
  • SMC Pentax-F 50mm f2.8 macro 1:1
  • SMC Pentax-FA 50mm f2.8 macro 1:1
  • SMC Pentax-DFA 50mm f2.8 macro 1:1
  • SMC Pentax 50mm f4 macro 1:2
  • SMC Pentax-M 50mm f4 macro 1:2
  • SMC Pentax-DA* 50-135mm f2.8 SMC ED IF SDM (2007-)
  • SMC PENTAX-DA 50-200mm f4-5.6 ED
  • SMC PENTAX-DA 50-200mm f4-5.6 ED WR
  • SMC Pentax-DA 55mm f1.4 SDM
  • SMC Pentax 55mm f1.8
  • SMC Pentax 55mm f2
  • SMC Pentax-DA 55-300mm F4-5.8 ED
  • SMC Pentax-DA* 60-250mm f4 ED IF SDM
  • SMC Pentax-DA 70mm f2.4 limited (2007-)
  • SMC Pentax-FA 70-200 f4-5.6 PZ
  • SMC Pentax-A 70-210mm f4
  • SMC Pentax-F 70-210mm f4-5.6 ED
  • SMC Pentax-M 75-150 f4
  • SMC Pentax-FA J 75-300mm f4.5-5.6 AL
  • SMC Pentax-FA 77mm f1.8 limited FREE GC (black)
  • SMC Pentax-FA 77mm f1.8 limited FREE GC (chrome)
  • SMC Pentax-FA 80-200mm f2.8 ED IF PZ
  • SMC Pentax 80-200mm f4.5
  • SMC Pentax-M 80-200mm f4.5 (version 1)
  • SMC Pentax-M 80-200mm f4.5 (version 2)
  • SMC Pentax-A 80-200mm f4.7-5.6
  • SMC Pentax-F 80-200mm f4.7-5.6
  • SMC Pentax-FA 80-200mm f4.7-5.6
  • SMC Pentax-FA 80-320mm f4.5-5.6
  • SMC Pentax-A* 85mm f1.4 FREE (1984–1989)
  • SMC Pentax-FA* 85mm f1.4 IF (1992–2004)
  • SMC Pentax 85 f1.8
  • SMC Pentax-M 85 f2 (1977–1984)
  • SMC Pentax 85mm f2.2 soft
  • SMC Pentax-F 85mm f2.8 soft
  • SMC Pentax-FA 85mm f2.8 soft
  • SMC Pentax 85-210mm f3.5
  • SMC Pentax 85-210mm f4.5
  • SMC Pentax-M 100mm f2.8
  • SMC Pentax-A 100mm f2.8
  • SMC Pentax-A 100mm f2.8 macro 1:1 FREE
  • SMC Pentax-F 100mm f2.8 macro 1:1 FREE
  • SMC Pentax-FA 100mm f2.8 macro 1:1 FREE
  • SMC Pentax-DFA 100mm f2.8 macro 1:1 FREE
  • SMC Pentax-FA 100mm f3.5 macro 1:2
  • SMC Pentax 100mm f4 macro 1:2
  • SMC Pentax 100mm f4 macro 1:2 bellows
  • SMC Pentax-M 100mm f4 macro 1:2
  • SMC Pentax-M 100mm f4 dental macro 1:2
  • SMC Pentax-A 100mm f4 macro 1:2
  • SMC Pentax-A 100mm f4 dental macro 1:2
  • SMC Pentax-F 100-300mm f4.5-5.6
  • SMC Pentax-F 100-300mm f4.5-5.6 PZ
  • SMC Pentax-FA 100-300mm f4.7-5.8
  • SMC Pentax 105mm f2.8
  • SMC Pentax 120mm f2.8
  • SMC Pentax-M 120mm f2.8
  • SMC Pentax-A* 135mm f1.8 FREE (1984–1989)
  • SMC Pentax 135mm f2.5
  • SMC Pentax-A 135mm f2.8 (1985–1989)
  • SMC Pentax-F 135mm f2.8 IF
  • SMC Pentax-FA 135mm f2.8 IF
  • SMC Pentax 135mm f3.5
  • SMC Pentax-M 135mm f3.5
  • SMC Pentax 135-600mm f6.7
  • SMC Pentax-M 150mm f3.5
  • SMC Pentax 150mm f4
  • SMC Pentax 200mm f2.5
  • SMC Pentax-A* 200mm f2.8 ED (1984–1998)
  • SMC Pentax-FA* 200mm f2.8 IF ED (1993–2004)
  • SMC Pentax-DA* 200mm f2.8 ED IF SDM (2007-)
  • SMC Pentax 200mm f4
  • SMC Pentax-M 200mm f4
  • SMC Pentax-A 200mm f4
  • SMC Pentax-A* 200mm f4 ED FREE macro 1:1
  • SMC Pentax-FA* 200mm f4 ED IF GC macro 1:1
  • SMC Pentax-F* 250-600 f5.6 ED IF
  • SMC Pentax-FA* 250-600 f5.6 ED IF PZ
  • SMC Pentax-A* 300mm f2.8 ED IF
  • SMC Pentax-FA* 300mm f2.8 ED IF
  • SMC Pentax 300mm f4
  • SMC Pentax-M* 300mm f4
  • SMC Pentax-A* 300mm f4
  • SMC Pentax-DA* 300mm f4 ED IF SDM
  • SMC Pentax-F* 300mm f4.5 ED IF
  • SMC Pentax-FA* 300mm f4.5 ED IF
  • SMC Pentax-A* 400mm f2.8 ED IF
  • SMC Pentax 400mm f5.6
  • SMC Pentax-M 400mm f5.6
  • SMC Pentax-A 400mm f5.6
  • SMC Pentax-FA* 400mm f2.8 ED IF
  • SMC Pentax 400-600mm f8-12 Reflex (Catadioptric)
  • SMC Pentax 500mm f4.5
  • SMC Pentax-F* 600mm f4 ED IF
  • SMC Pentax-FA* 600mm f4 ED IF (currently only on special order)
  • SMC Pentax-A* 600mm f5.6 ED IF
  • SMC Pentax 1000mm f8
  • SMC Pentax 1000mm f11 Reflex (Catadioptric)
  • SMC Pentax-A* 1200mm f8 ED IF
  • SMC Pentax 2000mm f13.5 Reflex (Catadioptric)
  • SMC Pentax-M 2000mm f13.5 Reflex (Catadioptric)

Accessories

  • SMC Pentax Rear Converter K T6-2x
  • SMC Pentax Rear Converter-A 1.4x-L Teleconverter
    Teleconverter
    A teleconverter is a secondary lens which is mounted between the camera and a photographic lens. Its job is to enlarge the central part of an image obtained by the objective lens...

  • SMC Pentax Rear Converter-A 2x-L Teleconverter
    Teleconverter
    A teleconverter is a secondary lens which is mounted between the camera and a photographic lens. Its job is to enlarge the central part of an image obtained by the objective lens...

  • SMC Pentax Rear Converter-A 1.4x-S Teleconverter
    Teleconverter
    A teleconverter is a secondary lens which is mounted between the camera and a photographic lens. Its job is to enlarge the central part of an image obtained by the objective lens...

  • SMC Pentax Rear Converter-A 2x-S Teleconverter
    Teleconverter
    A teleconverter is a secondary lens which is mounted between the camera and a photographic lens. Its job is to enlarge the central part of an image obtained by the objective lens...

  • SMC Pentax-F 1.7x AF Adapter

Phoenix

  • Phoenix 500mm f8 Reflex(Catadioptric
    Catadioptric
    A catadioptric optical system is one where refraction and reflection are combined in an optical system, usually via lenses and curved mirrors . Catadioptric combinations are used in focusing systems such as search lights, headlamps, early lighthouse focusing systems, optical telescopes,...

    ) (2006)
  • Phoenix 800mm f8 Reflex(Catadioptric
    Catadioptric
    A catadioptric optical system is one where refraction and reflection are combined in an optical system, usually via lenses and curved mirrors . Catadioptric combinations are used in focusing systems such as search lights, headlamps, early lighthouse focusing systems, optical telescopes,...

    ) (2008)

Polar

Polar is a brand of Samyang Optics, a South Korean third party lens manufacturer.
  • Polar 800mm f8 Reflex(Catadioptric
    Catadioptric
    A catadioptric optical system is one where refraction and reflection are combined in an optical system, usually via lenses and curved mirrors . Catadioptric combinations are used in focusing systems such as search lights, headlamps, early lighthouse focusing systems, optical telescopes,...

    ) (2008)
  • Polar 85mm Portrait Lens f1.4 Aspherical IF (2008)

Porst

  • Porst 28mm f2.8 MC Auto
  • Porst 40mm f2.5 MC Auto
  • Porst 55mm f1.2 Reflex MC Auto (55mm filter)
  • Porst 55mm f1.2 MC Auto
  • Porst 135mm f2.8 Tele-AS MC E (55mm filter) - http://www.frtg.de/privat/porst_automatic_tele_135mm_f28/frtg_de_porst_automatic_tele_135mm_f28.htm

  • Porst 75-260mm f4.5
  • Porst 200mm f3.5

Promaster

  • Promaster 18-200mm f3.5-6.3 AF XR EDO
  • Promaster 18-200mm f3.5-6.3 AF XR EDO(2007)
  • Promaster 19-35mm f3.5-4.5 AF
  • Promaster 24-200mm f3.5-5.6 AF XLD ASP
  • Promaster 28-80mm f3.5-5.6 AF
  • Promaster 28-70mm f2.8-4.2 MC Auto ZOOM MACRO
  • Promaster 28-70mm f3.9-4.8 Spectrum 7 MC Macro Auto
  • Promaster 28-80mm f3.5-5.6 Spectrum 7 AF
  • Promaster 28-105mm f4-5.6 AF IF
  • Promaster 28-200mm f3.5-5.6 AF XR
  • Promaster 28-210mm f3.5-5.6 Spectrum 7 MC Macro
  • Promaster 50 f1.7
  • Promaster 60-300mm f4-5.6 Spectrum 7 (67mm filter) (2008)
  • Promaster 70-210mm f4-5.6 AF Macro
  • Promaster 70-300mm f4-5.6 Spectrum 7 AF EDO LD Macro (2007)
  • Promaster 80-210mm f4.5-5.6 AF
  • Promaster 85-210mm f3.8 Auto Zoom Macro MC
  • Promaster 135mm f1:2.8 MC

Revuenon

  • Revuenon 55 mm f/1.2
  • Revuenon 135 mm f/2.8
  • Revuenon 200 mm f/3.5
  • Revuenon 300 mm f/5.6

Ricoh - Rikenon - Riconar

This lens uses the Ricoh KR mount version, Ricoh made both a XR version without the zoom pin, and the P version which has it.
  • Rikenon 28mm f2.8 (52mm filter)XR Version
  • Rikenon 35mm f2.8 XR Version
  • Rikenon 50mm f2 L (52mm filter)XR Version
  • Rikenon 50mm f1.4 (52mm filter)XR Version
  • Rikenon 50mm f1.7 (52mm filter)XR Version
  • Rikenar 55mm f2.2 (52mm filter)
  • Rikenon 135mm f2.8 (55mm filter)XR Version
  • Rikenon 200mm f4 XR
  • Rikenon 50mm f2 (52mm filter)P Version
  • Rikenon 600mm f8 Reflex XR Version

Rokinon

This lens uses the Ricoh KR mount version:
  • Rokinon 500mm f6.3 Reflex (Catadioptric
    Catadioptric
    A catadioptric optical system is one where refraction and reflection are combined in an optical system, usually via lenses and curved mirrors . Catadioptric combinations are used in focusing systems such as search lights, headlamps, early lighthouse focusing systems, optical telescopes,...

    )

Sakar

Sakar is a commercial American company that used to sell K mount lenses.
  • 80-210mm f1:3.8 macro MC (58mm filter)
  • 500mm f/8 macro mirror (Catadioptric
    Catadioptric
    A catadioptric optical system is one where refraction and reflection are combined in an optical system, usually via lenses and curved mirrors . Catadioptric combinations are used in focusing systems such as search lights, headlamps, early lighthouse focusing systems, optical telescopes,...

    )

Schneider-Kreuznach

All these lenses had been marketed by Samsung and are those present on Samsung's digital SLRs Schneider-Kreuznach is a traditional optics maker that do still make specialised glass and lenses (today mainly high-quality large-format lenses, enlarger lens and photographic loupes), but not for Samsung. They license their name to Samsung granted that certain minimum quality requirements are fulfilled. All the Schneider branded glass from Samsung is manufactured by Pentax and corresponds directly to Pentax lenses.
  • Schneider-Kreuznach D-Xenogon 35mm f2 (2006-) (rebadged SMC PENTAX-FA 1:2 35mm AL, 1999-)
  • Schneider-Kreuznach D-Xenon 18-55mm f3.5-5.6 AF (2007- ) (rebadged SMC PENTAX-DA 1:3.5-5.6 18-55mm AL, 2004- )
  • Schneider-Kreuznach D-Xenon 100mm MACRO 1:2.8 (2007-) (rebadged SMC PENTAX-D FA 1:2.8 100mm MACRO, 2004-)
  • Schneider-Kreuznach D-Xenogon 10-17mm F3.5-4.5 ED (2007- ) (rebadged SMC PENTAX-DA FISH-EYE 1:3.5-4.5 10-17mm ED (IF), 2006-)
  • Schneider-Kreuznach D-Xenon 12-24mm f4 ED (2007- ) (rebadged SMC PENTAX-DA 1:4 12-24mm ED AL (IF), 2005-)
  • Schneider-Kreuznach D-Xenon 50-200mm f/4-5.6 AF (2006-) (rebadged SMC PENTAX-DA 1:4-5.6 50-200mm ED, 2005-)

Special lenses

  • Schneider-Kreuznach Super Angulon 28mm f2.8 Shift Lens (2008)

(The mechanism uses an adapter for different mounts as part of the design, but without adapter cannot be used, similar to the Adaptall)

Sears

Sears is an American commercial company that sells relabeled lenses and cameras at their own stores in the U.S. for a number of years. As the objective was mainly commercial, quality is very different among lenses. Quality on construction in some ones is very good and in some others is plain bad. But it seems to be consistent among the same model.
Some of the Sears lenses were made to fit Sears Cameras with the Ricoh
Ricoh
or Ricoh, is a Japanese company that was established in 1936 on February 6th, as , a company in the RIKEN zaibatsu. Its headquarters is located in Ricoh Building in Chūō, Tokyo....

 K mount version and are identified as KR, but is prudent to verify it before using it on more modern cameras that may be damaged by the Ricoh
Ricoh
or Ricoh, is a Japanese company that was established in 1936 on February 6th, as , a company in the RIKEN zaibatsu. Its headquarters is located in Ricoh Building in Chūō, Tokyo....

 pin.
  • Sears 28mm f/2.8 Auto MC
  • Sears 50mm f/1.4 Auto MC
  • Sears 50mm f/1.7 Auto MC
  • Sears 55mm f/1.4
  • Sears 55mm f/2
  • Sears 28-70mm f/3.5-4.5 Macro
  • Sears 60-300mm f/4-5.6 Macro (KR mount)
  • Sears 75-260mm f/4.5 MC Macro
  • Sears 80-200mm f/4-5.6 Auto MC
  • Sears MC 135mm f/2.8
  • Sears Auto 2X Teleconverter

Sigma
Sigma Corporation
is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

Sigma
Sigma
Sigma is the eighteenth letter of the Greek alphabet, and carries the 'S' sound. In the system of Greek numerals it has a value of 200. When used at the end of a word, and the word is not all upper case, the final form is used, e.g...

 is a Japanese manufacturer of cameras and lenses. It has made lenses for the k mount for a number of years. And quality among them had varied a lot. After the launch of the K10D digital SLR
SLR
The initialism SLR can refer to:* Satellite laser ranging* Scalable Linear Recording Tape Drive Backup* Self-Loading Rifle, see semi-automatic rifle.** The UK version of the Belgian FN FAL select fire battle rifle, the L1A1 SLR.* Semi-linear resolution...

 it launched k mount D series lenses. Such ones are designed to be used with the APS
APS
-Education:* Army Public School, group of Army schools in India under AWES* APS Netherlands, or APS International, a Dutch educational non-governmental organization* Abbottabad Public School and College...

 sensor size camera, but older K mount can be used as well. An increase in model numbers can be seen between 2007 and 2008 due to the success of the K10D, K100D, K100D Super, K110D, K20D
Pentax K20D
The Pentax K20D and its clone, the Samsung GX-20, were 14.6 megapixel digital single-lens reflex cameras manufactured by Pentax that were announced on January 23, 2008. The K20D was available in the U.S...

 and K200D
Pentax K200D
The Pentax K200D is a 10.2 megapixel digital single-lens reflex camera, announced on January 24, 2008 along with the higher-end K20D. It was discontinued in December 2008, giving it the distinction of being one of the shortest-lived DSLR cameras....

 cameras. Use of older Sigma
Sigma
Sigma is the eighteenth letter of the Greek alphabet, and carries the 'S' sound. In the system of Greek numerals it has a value of 200. When used at the end of a word, and the word is not all upper case, the final form is used, e.g...

 lenses is possible but with caution, some Sigma
Sigma
Sigma is the eighteenth letter of the Greek alphabet, and carries the 'S' sound. In the system of Greek numerals it has a value of 200. When used at the end of a word, and the word is not all upper case, the final form is used, e.g...

 older k mount lenses are with the infamous Ricoh
Ricoh
or Ricoh, is a Japanese company that was established in 1936 on February 6th, as , a company in the RIKEN zaibatsu. Its headquarters is located in Ricoh Building in Chūō, Tokyo....

 pin.
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     8mm f/3.5 EX DG Fisheye
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     8-16mm f/4.5-5.6 DC HSM
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     10-20mm f/4.0-5.6 AF EX DC
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     10-20mm F/3.5 EX DC HSM
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     12-24mm f/4.5-5.6 EX DG
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     15mm f/2.8 EX DG Fisheye
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     15-30mm f/3.5-5.6 AF EX DG
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     17-35mm f/2.8-4 EX ASP
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     17-50mm f/2.8 EX DC OS HSM
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     17-70mm f/2.8-4.5 DC Macro
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     17-70mm f/2.8-4.5 DC Macro (2007)
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     17-70mm f/2.8-4 DC Macro OS HSM
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     18-50mm f/3.5-5.6 DC AF
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     18-50mm f2.8-4.5 DC OS HSM
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     18-125 f/3.8-5.6 DC HSM
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     18-200mm f/3.5-5.6 DC
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     18-250mm f/3.5-6.3 DC OS HSM
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     20mm f/1.8 EX DG ASP
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     20-40mm f/2.8 EX DG ASP
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     24mm f/1.8 EX DG
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     24-70mm f/2.8 IF EX DG HSM
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     24-70mm f/3.5-5.6
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     24-135mm f/2.8-4.5 IF ASPH AF
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     28mm f/1.8 EX DG
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     28mm Mini-Wide f/2.8
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     28-70mm f/2.8 EX DF ASP
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     28-300mm f/3.5-6.3 DL ASP IF
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     28 f/1.8 EX DG
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     28-300mm f/3.5-6.3 CHZ ASP
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     28-200mm f/3.5-5.6 DL Macro
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     28-200mm f/3.5-5.6
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     28-105mm f/2.8-4 ASP
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     28-80mm f/2.8 EX DF ASP Macro II
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     28-80mm f/2.8 EX DF ASP Macro
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     28-80mm f/3.5-5.6
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     30mm f/1.4 EX DC
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     35-70mm f/2.8-4 Macro 1:6.7(52mm filter)
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     50mm f1.4 EX DG HSM
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     50mm f/2.8 EX DG Macro
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     50-150 APO f/2.8 EX DC II
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     50-200mm f4-5.6 DC O S HSM
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     50-500mm f/4-6.3 EX APO HSM
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     70mm f/2.8 EX DG Macro
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     70-200mm f/2.8 EX DG Macro
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     70-200mm f/2.8 EX APO
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     70-200mm f/2.8 EX DG OS HSM
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     70-200mm f/2.8 EX DG APO Macro MkII
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     70-300mm f/4-5.6 DG APO Macro
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     70-300mm f/4-5.6 DG Macro
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     70-300mm f/4-5.6 DG OS
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     70-300mm f/4-5.6 DI LD Macro (2008)
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     70-300mm f/4-5.6 DL Macro
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     70-300mm f/4-5.6 DG Macro
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     70-300mm f/4-5.6 EX APO Macro
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     75-300mm f4-5.6 AF
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     85mm f/1.4 EX DG HSM
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     100-200mm f/4.5 Macro
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     100-300mm f/4.5-6.7 DL
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     100-300mm f/4 EX APO IF
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     100-300mm f/4.5-6.7 DL
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     105mm f/2.8 EX DG Macro
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     120-400mm f/4.5-5.6 APO DG OS HSM
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     135-400mm f/4.5-5.6 APO ASP
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     150-500mm f/5.0-6.3 DG OS HSM
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     170-500mm f/5-6.3 APO ASP
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     180mm f/3.5 EX Macro
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     300mm f/2.8 EX DG
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     500mm f/4 XQ Reflex (Catadioptric
    Catadioptric
    A catadioptric optical system is one where refraction and reflection are combined in an optical system, usually via lenses and curved mirrors . Catadioptric combinations are used in focusing systems such as search lights, headlamps, early lighthouse focusing systems, optical telescopes,...

    )
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     500mm f/4.5 EX DG
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     500mm f/8 Reflex (Catadioptric
    Catadioptric
    A catadioptric optical system is one where refraction and reflection are combined in an optical system, usually via lenses and curved mirrors . Catadioptric combinations are used in focusing systems such as search lights, headlamps, early lighthouse focusing systems, optical telescopes,...

    )
  • Sigma
    Sigma Corporation
    is a Japanese company founded in 1961, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan...

     600mm f/8 Reflex (Catadioptric
    Catadioptric
    A catadioptric optical system is one where refraction and reflection are combined in an optical system, usually via lenses and curved mirrors . Catadioptric combinations are used in focusing systems such as search lights, headlamps, early lighthouse focusing systems, optical telescopes,...

    )

Soligor

  • Soligor
    Soligor
    Soligor was originally the trade mark for the American Allied Impex Corporation, used from 1956 for lenses and later cameras imported from Japan. It imported cameras from Japan and also took control of companies in Japan...

     70-210mm f/4.5
  • Soligor
    Soligor
    Soligor was originally the trade mark for the American Allied Impex Corporation, used from 1956 for lenses and later cameras imported from Japan. It imported cameras from Japan and also took control of companies in Japan...

     MC 80/135 f/4 dualfocal
  • Soligor
    Soligor
    Soligor was originally the trade mark for the American Allied Impex Corporation, used from 1956 for lenses and later cameras imported from Japan. It imported cameras from Japan and also took control of companies in Japan...

     85-205mm f/3.8
  • Soligor
    Soligor
    Soligor was originally the trade mark for the American Allied Impex Corporation, used from 1956 for lenses and later cameras imported from Japan. It imported cameras from Japan and also took control of companies in Japan...

     MC 90mm-230mm f/4.5
  • Soligor
    Soligor
    Soligor was originally the trade mark for the American Allied Impex Corporation, used from 1956 for lenses and later cameras imported from Japan. It imported cameras from Japan and also took control of companies in Japan...

     135mm f/2.8
  • Soligor
    Soligor
    Soligor was originally the trade mark for the American Allied Impex Corporation, used from 1956 for lenses and later cameras imported from Japan. It imported cameras from Japan and also took control of companies in Japan...

     200mm f/2.8

Spiratone

Spiratone was a company devoted to sell photographic accessories and manage to sell some lenses under their own brand name until it closed, very few were made for the k-mount, and none of them are known to be of good quality.
  • Spiratone
    Spiratone
    Spiratone was a company specializing in low-cost lenses and filters for cameras, lighting, and darkroom equipment.The company was started by Fred Spira in 1941 in the bathroom of his parents' apartment where he developed film. In 1946, it relocated to a large loft on West 27th Street in Manhattan...

     400mm f6.3
  • Spiratone
    Spiratone
    Spiratone was a company specializing in low-cost lenses and filters for cameras, lighting, and darkroom equipment.The company was started by Fred Spira in 1941 in the bathroom of his parents' apartment where he developed film. In 1946, it relocated to a large loft on West 27th Street in Manhattan...

     500mm f8 (72mm filter)

Tamron
Tamron
is a Japanese company manufacturing photographic lenses, optical components and commercial/industrial-use optics. Tamron Headquarters is located in Saitama City in the Saitama Prefecture of Japan....

Tamron
Tamron
is a Japanese company manufacturing photographic lenses, optical components and commercial/industrial-use optics. Tamron Headquarters is located in Saitama City in the Saitama Prefecture of Japan....

 is a third party vendor of photographic lenses, quality among them varies a lot. It is important to distinguish the adaptall versions from everything else, the adaptall is a generic adapter that allowed Tamron to manufacture a single lens design for a wide range of cameras, and commercialize those for specific brands with the use of the Adaptall I and Adaptall II adapters. So there is Tamron
Tamron
is a Japanese company manufacturing photographic lenses, optical components and commercial/industrial-use optics. Tamron Headquarters is located in Saitama City in the Saitama Prefecture of Japan....

 Lenses on K mount, and Tamron
Tamron
is a Japanese company manufacturing photographic lenses, optical components and commercial/industrial-use optics. Tamron Headquarters is located in Saitama City in the Saitama Prefecture of Japan....

 Adaptall I and II for K and KA mount adapters. More Information on the Adaptall can be found on the Tamron
Tamron
is a Japanese company manufacturing photographic lenses, optical components and commercial/industrial-use optics. Tamron Headquarters is located in Saitama City in the Saitama Prefecture of Japan....

 article of Wikipedia. Here the non-Adaptall versions:
  • Tamron
    Tamron
    is a Japanese company manufacturing photographic lenses, optical components and commercial/industrial-use optics. Tamron Headquarters is located in Saitama City in the Saitama Prefecture of Japan....

     10-24mm f/3.5-4.5 Di II LD AF SP Aspherical (IF)
  • Tamron
    Tamron
    is a Japanese company manufacturing photographic lenses, optical components and commercial/industrial-use optics. Tamron Headquarters is located in Saitama City in the Saitama Prefecture of Japan....

     17-50mm f/2.8 SP AF XR Di-II LD Aspherical IF
  • Tamron
    Tamron
    is a Japanese company manufacturing photographic lenses, optical components and commercial/industrial-use optics. Tamron Headquarters is located in Saitama City in the Saitama Prefecture of Japan....

     18-250mm f/3.5-6.3 AF Di-II LD Aspherical IF Macro
  • Tamron
    Tamron
    is a Japanese company manufacturing photographic lenses, optical components and commercial/industrial-use optics. Tamron Headquarters is located in Saitama City in the Saitama Prefecture of Japan....

     18-200mm f/3.5-6.3 XR Di-II LD IF (2008)
  • Tamron
    Tamron
    is a Japanese company manufacturing photographic lenses, optical components and commercial/industrial-use optics. Tamron Headquarters is located in Saitama City in the Saitama Prefecture of Japan....

     28-75mm f/2.8 SP AF XR Di LD Aspherical IF Macro
  • Tamron
    Tamron
    is a Japanese company manufacturing photographic lenses, optical components and commercial/industrial-use optics. Tamron Headquarters is located in Saitama City in the Saitama Prefecture of Japan....

     28-80mm f/3.5-5.6 AF
  • Tamron
    Tamron
    is a Japanese company manufacturing photographic lenses, optical components and commercial/industrial-use optics. Tamron Headquarters is located in Saitama City in the Saitama Prefecture of Japan....

     28-300mm f/3.5-6.3 XR DI LD
  • Tamron
    Tamron
    is a Japanese company manufacturing photographic lenses, optical components and commercial/industrial-use optics. Tamron Headquarters is located in Saitama City in the Saitama Prefecture of Japan....

     70-200mm f/2.8 SP AF
  • Tamron
    Tamron
    is a Japanese company manufacturing photographic lenses, optical components and commercial/industrial-use optics. Tamron Headquarters is located in Saitama City in the Saitama Prefecture of Japan....

     70-300mm f/4-5.6 DI LD Macro (2008)
  • Tamron
    Tamron
    is a Japanese company manufacturing photographic lenses, optical components and commercial/industrial-use optics. Tamron Headquarters is located in Saitama City in the Saitama Prefecture of Japan....

     90mm f/2.8 SP Di Macro (No Adaptall version)
  • Tamron
    Tamron
    is a Japanese company manufacturing photographic lenses, optical components and commercial/industrial-use optics. Tamron Headquarters is located in Saitama City in the Saitama Prefecture of Japan....

     90mm f/2.5 Macro (No Adaptall version)
  • Tamron
    Tamron
    is a Japanese company manufacturing photographic lenses, optical components and commercial/industrial-use optics. Tamron Headquarters is located in Saitama City in the Saitama Prefecture of Japan....

     90mm f/2.8 SP AFDi 1:1 Macro
  • Tamron
    Tamron
    is a Japanese company manufacturing photographic lenses, optical components and commercial/industrial-use optics. Tamron Headquarters is located in Saitama City in the Saitama Prefecture of Japan....

     300mm f/2.8 DL (Adaptall)
  • Tamron
    Tamron
    is a Japanese company manufacturing photographic lenses, optical components and commercial/industrial-use optics. Tamron Headquarters is located in Saitama City in the Saitama Prefecture of Japan....

     500mm f/8 SP (Adaptall 2) Reflex(Catadioptric
    Catadioptric
    A catadioptric optical system is one where refraction and reflection are combined in an optical system, usually via lenses and curved mirrors . Catadioptric combinations are used in focusing systems such as search lights, headlamps, early lighthouse focusing systems, optical telescopes,...

    )

Tokina

  • Tokina
    Tokina
    is a Japanese manufacturer of photographic lenses and CCTV security equipment.-History:Tokina, become a partner of Pentax, division of Hoya Corporation and jointly developed some lenses. These will be available under the Pentax and Schneider Kreuznach D-Xenon and D-Xenogon brands in Pentax K mount...

     17mm f3.5
  • Tokina
    Tokina
    is a Japanese manufacturer of photographic lenses and CCTV security equipment.-History:Tokina, become a partner of Pentax, division of Hoya Corporation and jointly developed some lenses. These will be available under the Pentax and Schneider Kreuznach D-Xenon and D-Xenogon brands in Pentax K mount...

     28mm f2.8
  • Tokina
    Tokina
    is a Japanese manufacturer of photographic lenses and CCTV security equipment.-History:Tokina, become a partner of Pentax, division of Hoya Corporation and jointly developed some lenses. These will be available under the Pentax and Schneider Kreuznach D-Xenon and D-Xenogon brands in Pentax K mount...

     90mm f2.5 macro AT-X
  • Tokina
    Tokina
    is a Japanese manufacturer of photographic lenses and CCTV security equipment.-History:Tokina, become a partner of Pentax, division of Hoya Corporation and jointly developed some lenses. These will be available under the Pentax and Schneider Kreuznach D-Xenon and D-Xenogon brands in Pentax K mount...

     90mm f2.8 macro
  • Tokina
    Tokina
    is a Japanese manufacturer of photographic lenses and CCTV security equipment.-History:Tokina, become a partner of Pentax, division of Hoya Corporation and jointly developed some lenses. These will be available under the Pentax and Schneider Kreuznach D-Xenon and D-Xenogon brands in Pentax K mount...

     200mm f3.5
  • Tokina
    Tokina
    is a Japanese manufacturer of photographic lenses and CCTV security equipment.-History:Tokina, become a partner of Pentax, division of Hoya Corporation and jointly developed some lenses. These will be available under the Pentax and Schneider Kreuznach D-Xenon and D-Xenogon brands in Pentax K mount...

     20-35mm f2.8 AT-X Pro
  • Tokina
    Tokina
    is a Japanese manufacturer of photographic lenses and CCTV security equipment.-History:Tokina, become a partner of Pentax, division of Hoya Corporation and jointly developed some lenses. These will be available under the Pentax and Schneider Kreuznach D-Xenon and D-Xenogon brands in Pentax K mount...

     28-70mm f2.8
  • Tokina
    Tokina
    is a Japanese manufacturer of photographic lenses and CCTV security equipment.-History:Tokina, become a partner of Pentax, division of Hoya Corporation and jointly developed some lenses. These will be available under the Pentax and Schneider Kreuznach D-Xenon and D-Xenogon brands in Pentax K mount...

     28-70mm f3.5-4.5 PKA mount
  • Tokina
    Tokina
    is a Japanese manufacturer of photographic lenses and CCTV security equipment.-History:Tokina, become a partner of Pentax, division of Hoya Corporation and jointly developed some lenses. These will be available under the Pentax and Schneider Kreuznach D-Xenon and D-Xenogon brands in Pentax K mount...

     28-200mm f3.5-5.3 zoom, 72mm filter
  • Tokina
    Tokina
    is a Japanese manufacturer of photographic lenses and CCTV security equipment.-History:Tokina, become a partner of Pentax, division of Hoya Corporation and jointly developed some lenses. These will be available under the Pentax and Schneider Kreuznach D-Xenon and D-Xenogon brands in Pentax K mount...

     35-105mm f3.5 RMC - close focusing zoom
  • Tokina
    Tokina
    is a Japanese manufacturer of photographic lenses and CCTV security equipment.-History:Tokina, become a partner of Pentax, division of Hoya Corporation and jointly developed some lenses. These will be available under the Pentax and Schneider Kreuznach D-Xenon and D-Xenogon brands in Pentax K mount...

     60-120mm f2.8 AT-X (portrait lens, 55mm filter)
  • Tokina
    Tokina
    is a Japanese manufacturer of photographic lenses and CCTV security equipment.-History:Tokina, become a partner of Pentax, division of Hoya Corporation and jointly developed some lenses. These will be available under the Pentax and Schneider Kreuznach D-Xenon and D-Xenogon brands in Pentax K mount...

     75-150mm f3.8
  • Tokina
    Tokina
    is a Japanese manufacturer of photographic lenses and CCTV security equipment.-History:Tokina, become a partner of Pentax, division of Hoya Corporation and jointly developed some lenses. These will be available under the Pentax and Schneider Kreuznach D-Xenon and D-Xenogon brands in Pentax K mount...

     80-200mm f2.8
  • Tokina
    Tokina
    is a Japanese manufacturer of photographic lenses and CCTV security equipment.-History:Tokina, become a partner of Pentax, division of Hoya Corporation and jointly developed some lenses. These will be available under the Pentax and Schneider Kreuznach D-Xenon and D-Xenogon brands in Pentax K mount...

     80-200mm f4.5-5.6 SZ-X (49mm filter)
  • Tokina
    Tokina
    is a Japanese manufacturer of photographic lenses and CCTV security equipment.-History:Tokina, become a partner of Pentax, division of Hoya Corporation and jointly developed some lenses. These will be available under the Pentax and Schneider Kreuznach D-Xenon and D-Xenogon brands in Pentax K mount...

     80-400mm f4.5-5.6 AT-X
  • Tokina
    Tokina
    is a Japanese manufacturer of photographic lenses and CCTV security equipment.-History:Tokina, become a partner of Pentax, division of Hoya Corporation and jointly developed some lenses. These will be available under the Pentax and Schneider Kreuznach D-Xenon and D-Xenogon brands in Pentax K mount...

     150-500mm f5.6 AT-X SD
  • Tokina
    Tokina
    is a Japanese manufacturer of photographic lenses and CCTV security equipment.-History:Tokina, become a partner of Pentax, division of Hoya Corporation and jointly developed some lenses. These will be available under the Pentax and Schneider Kreuznach D-Xenon and D-Xenogon brands in Pentax K mount...

     500mm f8 RMC Reflex(Catadioptric
    Catadioptric
    A catadioptric optical system is one where refraction and reflection are combined in an optical system, usually via lenses and curved mirrors . Catadioptric combinations are used in focusing systems such as search lights, headlamps, early lighthouse focusing systems, optical telescopes,...

    )

Tou/Five Star

Tou Five Star was the commercial brand from Toyo Optics, some lenses are labeled as Toyo Optics, Toyo Five Star or Tou Five Star, They were manufactured between 1967 and sometime around 1980 the company seems to have changed its focus to video lenses.
  • Tou/Five Star MC Auto 28mm 1:2.8 (to f/22) (52mm)
  • Toyo/Five Star MC Auto 28mm 1:2.8 (to f/16) (52mm)
  • Tou/Five Star 28-80mm 1:3.5-4.5 macro
  • Tou/Five Star 28-135mm 1:3.5-5.2 macro (67mm)
  • Tou/Five Star 70-210mm 1:4.5-22 macro (55mm)
  • Tou/Five Star 75-200mm 1:4.5 macro
  • Tou/Five Star MC Auto 200mm 1:4.5 (52mm)
  • Tou/Five Star 500mm 1:8

Vivitar

  • Vivitar
    Vivitar
    Vivitar Corporation was a manufacturer, distributor and marketer of photographic and optical equipment originally based in Oxnard, California. Since 2008 the Vivitar name serves as Sakar International's photographic and optical equipment brand.-Products:...

     19-35mm f3.5-4.5 Series 1
  • Vivitar
    Vivitar
    Vivitar Corporation was a manufacturer, distributor and marketer of photographic and optical equipment originally based in Oxnard, California. Since 2008 the Vivitar name serves as Sakar International's photographic and optical equipment brand.-Products:...

     24mm f2
  • Vivitar
    Vivitar
    Vivitar Corporation was a manufacturer, distributor and marketer of photographic and optical equipment originally based in Oxnard, California. Since 2008 the Vivitar name serves as Sakar International's photographic and optical equipment brand.-Products:...

     24mm f2.8
  • Vivitar
    Vivitar
    Vivitar Corporation was a manufacturer, distributor and marketer of photographic and optical equipment originally based in Oxnard, California. Since 2008 the Vivitar name serves as Sakar International's photographic and optical equipment brand.-Products:...

     24-70mm f3.3-4.8 Series 1
  • Vivitar
    Vivitar
    Vivitar Corporation was a manufacturer, distributor and marketer of photographic and optical equipment originally based in Oxnard, California. Since 2008 the Vivitar name serves as Sakar International's photographic and optical equipment brand.-Products:...

     28-85mm f2.8-3.8
  • Vivitar
    Vivitar
    Vivitar Corporation was a manufacturer, distributor and marketer of photographic and optical equipment originally based in Oxnard, California. Since 2008 the Vivitar name serves as Sakar International's photographic and optical equipment brand.-Products:...

     28-90mm f2.8-3.8 Series 1
  • Vivitar
    Vivitar
    Vivitar Corporation was a manufacturer, distributor and marketer of photographic and optical equipment originally based in Oxnard, California. Since 2008 the Vivitar name serves as Sakar International's photographic and optical equipment brand.-Products:...

     28-105mm f2.8-3.8 Series 1
  • Vivitar
    Vivitar
    Vivitar Corporation was a manufacturer, distributor and marketer of photographic and optical equipment originally based in Oxnard, California. Since 2008 the Vivitar name serves as Sakar International's photographic and optical equipment brand.-Products:...

     35-200mm f3-4.5 Macro 1:5 (65mm filter)
  • Vivitar
    Vivitar
    Vivitar Corporation was a manufacturer, distributor and marketer of photographic and optical equipment originally based in Oxnard, California. Since 2008 the Vivitar name serves as Sakar International's photographic and optical equipment brand.-Products:...

     40mm f2.5 VMC
  • Vivitar
    Vivitar
    Vivitar Corporation was a manufacturer, distributor and marketer of photographic and optical equipment originally based in Oxnard, California. Since 2008 the Vivitar name serves as Sakar International's photographic and optical equipment brand.-Products:...

     50mm f1.4 VMC
  • Vivitar
    Vivitar
    Vivitar Corporation was a manufacturer, distributor and marketer of photographic and optical equipment originally based in Oxnard, California. Since 2008 the Vivitar name serves as Sakar International's photographic and optical equipment brand.-Products:...

     55mm f1.2 VMC Series I (58mm filter)
  • Vivitar
    Vivitar
    Vivitar Corporation was a manufacturer, distributor and marketer of photographic and optical equipment originally based in Oxnard, California. Since 2008 the Vivitar name serves as Sakar International's photographic and optical equipment brand.-Products:...

     70-210mm f2.8-4 Series 1
  • Vivitar
    Vivitar
    Vivitar Corporation was a manufacturer, distributor and marketer of photographic and optical equipment originally based in Oxnard, California. Since 2008 the Vivitar name serves as Sakar International's photographic and optical equipment brand.-Products:...

     75-200mm f4.5
  • Vivitar
    Vivitar
    Vivitar Corporation was a manufacturer, distributor and marketer of photographic and optical equipment originally based in Oxnard, California. Since 2008 the Vivitar name serves as Sakar International's photographic and optical equipment brand.-Products:...

     85-205mm f3.8
  • Vivitar
    Vivitar
    Vivitar Corporation was a manufacturer, distributor and marketer of photographic and optical equipment originally based in Oxnard, California. Since 2008 the Vivitar name serves as Sakar International's photographic and optical equipment brand.-Products:...

     90mm f2.5 SL I Macro (2002-?)
  • Vivitar
    Vivitar
    Vivitar Corporation was a manufacturer, distributor and marketer of photographic and optical equipment originally based in Oxnard, California. Since 2008 the Vivitar name serves as Sakar International's photographic and optical equipment brand.-Products:...

     90-180mm f4.5 Macro
  • Vivitar
    Vivitar
    Vivitar Corporation was a manufacturer, distributor and marketer of photographic and optical equipment originally based in Oxnard, California. Since 2008 the Vivitar name serves as Sakar International's photographic and optical equipment brand.-Products:...

     100-500mm f5.6-8 (67mm filter) Series 1
  • Vivitar
    Vivitar
    Vivitar Corporation was a manufacturer, distributor and marketer of photographic and optical equipment originally based in Oxnard, California. Since 2008 the Vivitar name serves as Sakar International's photographic and optical equipment brand.-Products:...

     135mm f2.8
  • Vivitar
    Vivitar
    Vivitar Corporation was a manufacturer, distributor and marketer of photographic and optical equipment originally based in Oxnard, California. Since 2008 the Vivitar name serves as Sakar International's photographic and optical equipment brand.-Products:...

     200mm f3 Series 1 (72mm filter)
  • Vivitar
    Vivitar
    Vivitar Corporation was a manufacturer, distributor and marketer of photographic and optical equipment originally based in Oxnard, California. Since 2008 the Vivitar name serves as Sakar International's photographic and optical equipment brand.-Products:...

     450mm f4.5 Series 1 aspherical catadioptric
  • Vivitar
    Vivitar
    Vivitar Corporation was a manufacturer, distributor and marketer of photographic and optical equipment originally based in Oxnard, California. Since 2008 the Vivitar name serves as Sakar International's photographic and optical equipment brand.-Products:...

     600mm f8 Series 1 solid catadioptric
  • Vivitar
    Vivitar
    Vivitar Corporation was a manufacturer, distributor and marketer of photographic and optical equipment originally based in Oxnard, California. Since 2008 the Vivitar name serves as Sakar International's photographic and optical equipment brand.-Products:...

     800mm f11 Series 1 solid catadioptric

Voigtländer

  • Voigtländer
    Voigtländer
    Voigtländer is an optical company founded by Johann Christoph Voigtländer in Vienna in 1756 and is thus the oldest name in cameras. It produced the Petzval photographic lens in 1840, and the world's first all-metal daguerrotype camera in 1841, also bringing out plate cameras shortly afterwards...

     20mm f3.5 Color Skopar SL II (2009)
  • Voigtländer
    Voigtländer
    Voigtländer is an optical company founded by Johann Christoph Voigtländer in Vienna in 1756 and is thus the oldest name in cameras. It produced the Petzval photographic lens in 1840, and the world's first all-metal daguerrotype camera in 1841, also bringing out plate cameras shortly afterwards...

     35-70mm f3.5-4.8 (2004)
  • Voigtländer
    Voigtländer
    Voigtländer is an optical company founded by Johann Christoph Voigtländer in Vienna in 1756 and is thus the oldest name in cameras. It produced the Petzval photographic lens in 1840, and the world's first all-metal daguerrotype camera in 1841, also bringing out plate cameras shortly afterwards...

     40mm f2 SL II Ultron Aspherical (2008,limited)
  • Voigtländer
    Voigtländer
    Voigtländer is an optical company founded by Johann Christoph Voigtländer in Vienna in 1756 and is thus the oldest name in cameras. It produced the Petzval photographic lens in 1840, and the world's first all-metal daguerrotype camera in 1841, also bringing out plate cameras shortly afterwards...

     40mm f2 SL Ultron Aspherical (2007,limited)
  • Voigtländer
    Voigtländer
    Voigtländer is an optical company founded by Johann Christoph Voigtländer in Vienna in 1756 and is thus the oldest name in cameras. It produced the Petzval photographic lens in 1840, and the world's first all-metal daguerrotype camera in 1841, also bringing out plate cameras shortly afterwards...

     58mm f1.4 Nokton (2008)
  • Voigtländer
    Voigtländer
    Voigtländer is an optical company founded by Johann Christoph Voigtländer in Vienna in 1756 and is thus the oldest name in cameras. It produced the Petzval photographic lens in 1840, and the world's first all-metal daguerrotype camera in 1841, also bringing out plate cameras shortly afterwards...

     58mm f1.4 SL II Nokton (2008, SL I never available for K Mount)
  • Voigtländer
    Voigtländer
    Voigtländer is an optical company founded by Johann Christoph Voigtländer in Vienna in 1756 and is thus the oldest name in cameras. It produced the Petzval photographic lens in 1840, and the world's first all-metal daguerrotype camera in 1841, also bringing out plate cameras shortly afterwards...

     75mm f2.5 Color-Heliar (2002-200?)
  • Voigtländer
    Voigtländer
    Voigtländer is an optical company founded by Johann Christoph Voigtländer in Vienna in 1756 and is thus the oldest name in cameras. It produced the Petzval photographic lens in 1840, and the world's first all-metal daguerrotype camera in 1841, also bringing out plate cameras shortly afterwards...

     90mm f3.5 APO-Lanthar
  • Voigtländer
    Voigtländer
    Voigtländer is an optical company founded by Johann Christoph Voigtländer in Vienna in 1756 and is thus the oldest name in cameras. It produced the Petzval photographic lens in 1840, and the world's first all-metal daguerrotype camera in 1841, also bringing out plate cameras shortly afterwards...

     SL 125mm f2.5 APO-Lanthar (2002–2006)
  • Voigtländer
    Voigtländer
    Voigtländer is an optical company founded by Johann Christoph Voigtländer in Vienna in 1756 and is thus the oldest name in cameras. It produced the Petzval photographic lens in 1840, and the world's first all-metal daguerrotype camera in 1841, also bringing out plate cameras shortly afterwards...

     SL 180mm APO-Lanthar f4 (2002–2006)

Zenitar

Zenitar
Zenitar
Zenitar is a series of Soviet/Russian prime lenses. They were developed and are currently produced by JSC S. A. Zverev Krasnogorskiy Mekhanicheskiy Zavod . The series is most commonly known for the 1:2.8 16 mm fisheye lens....

 is a Russian lens brand, made by KMZ. Most Zenitar lenses are also available in M42 mount. Some of these are sold as K-mount lenses but use an adapter.
  • Zenitar
    Zenitar
    Zenitar is a series of Soviet/Russian prime lenses. They were developed and are currently produced by JSC S. A. Zverev Krasnogorskiy Mekhanicheskiy Zavod . The series is most commonly known for the 1:2.8 16 mm fisheye lens....

    -K 16mm f2.8 (2008)
  • Zenitar
    Zenitar
    Zenitar is a series of Soviet/Russian prime lenses. They were developed and are currently produced by JSC S. A. Zverev Krasnogorskiy Mekhanicheskiy Zavod . The series is most commonly known for the 1:2.8 16 mm fisheye lens....

     MC APO Telezenitar-K 300mm f4.5 (2008)
  • Zenitar
    Zenitar
    Zenitar is a series of Soviet/Russian prime lenses. They were developed and are currently produced by JSC S. A. Zverev Krasnogorskiy Mekhanicheskiy Zavod . The series is most commonly known for the 1:2.8 16 mm fisheye lens....

     MC Variozenitar-K 25-45mm f2.8-3.5 (1980-? version)(60mm filter)
  • Zenitar
    Zenitar
    Zenitar is a series of Soviet/Russian prime lenses. They were developed and are currently produced by JSC S. A. Zverev Krasnogorskiy Mekhanicheskiy Zavod . The series is most commonly known for the 1:2.8 16 mm fisheye lens....

     MC Variozenitar-K 25-45mm f2.8-3.5 (2008)
  • Zenitar
    Zenitar
    Zenitar is a series of Soviet/Russian prime lenses. They were developed and are currently produced by JSC S. A. Zverev Krasnogorskiy Mekhanicheskiy Zavod . The series is most commonly known for the 1:2.8 16 mm fisheye lens....

     MC Variozenitar-K 35-100mm f2.8 (1980?)
  • Zenitar
    Zenitar
    Zenitar is a series of Soviet/Russian prime lenses. They were developed and are currently produced by JSC S. A. Zverev Krasnogorskiy Mekhanicheskiy Zavod . The series is most commonly known for the 1:2.8 16 mm fisheye lens....

     Zenitar-K2 50mm f2 (1995-?)

Special Lenses

  • Zenitar
    Zenitar
    Zenitar is a series of Soviet/Russian prime lenses. They were developed and are currently produced by JSC S. A. Zverev Krasnogorskiy Mekhanicheskiy Zavod . The series is most commonly known for the 1:2.8 16 mm fisheye lens....

     MC 35mm Tilt & Shift f2.8 (2008)
  • Zenitar
    Zenitar
    Zenitar is a series of Soviet/Russian prime lenses. They were developed and are currently produced by JSC S. A. Zverev Krasnogorskiy Mekhanicheskiy Zavod . The series is most commonly known for the 1:2.8 16 mm fisheye lens....

    MC 80mm Tilt & Shift f2.8 (2008)

More information

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