The EF 24-85mm f/3.5-4.5 is an EF mount

Canon EF lens mount

Introduced in 1987, the EF lens mount is the standard lens mount on the Canon EOS family of SLR film and digital cameras. EF stands for "Electro-Focus": automatic focusing on EF lenses is handled by a dedicated electric motor built into the lens...

 wide

Wide-angle lens

From a design perspective, a wide angle lens is one that projects a substantially larger image circle than would be typical for a standard design lens of the same focal length; this enables either large tilt & shift movements with a view camera, or lenses with wide fields of view.More informally,...

-to-normal

Normal lens

In photography and cinematography a normal lens, also called a standard lens, is a lens that reproduces perspective that generally looks "natural" to a human observer under normal viewing conditions, as compared with lenses with longer or shorter focal lengths which produce an expanded or...

 zoom lens

Zoom lens

A zoom lens is a mechanical assembly of lens elements for which the focal length can be varied, as opposed to a fixed focal length lens...

. It was introduced by Canon

Canon Inc.

is a Japanese multinational corporation that specialises in the manufacture of imaging and optical products, including cameras, camcorders, photocopiers, steppers and computer printers. Its headquarters are located in Ōta, Tokyo, Japan.-Origins:...

 in 1996. The lens was originally sold with the Canon EOS IX

Canon EOS IX

The EOS IX or EOS IX E is an APS-format single-lens reflex camera that was introduced by Canon Inc. of Japan in October 1996 as part of their EOS series SLR cameras...

, an APS

Advanced Photo System

Advanced Photo System is a film format for still photography first produced in 1996. It was marketed by Eastman Kodak under the brand name Advantix, by FujiFilm under the name Nexia, by AgfaPhoto under the name Futura and by Konica as Centuria.- Design :The film is 24 mm wide, and has three...

 film SLR, although it was fully compatible with Canon's 35mm film SLRs. The lens was available in two colour schemes; silver when sold with the EOS IX, and black when sold separately. The lens remained in production during Canon's shift to digital SLRs and was often included in press images of the Canon EOS D30

Canon EOS D30

The Canon EOS D30 is a discontinued 3.1-megapixel professional digital single lens reflex camera body, initially announced by Canon on May 17, 2000. It is part of the Canon EOS line of cameras and uses the EF lens mount. The EOS D30 was Canon's first "home grown" digital SLR...

. As of June 2010 it is no longer listed on Canon's North American product page.