The EOS-1D Mark IV is a professional 16.1 effective megapixels digital single lens reflex camera (DSLR) camera body

Digital camera back

A digital camera back is a device that attaches to the back of a camera in place of a film holder and contains an electronic image sensor. This lets cameras that were designed to use film take digital photographs...

 produced 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:...

. The EOS-1D Mark IV is the successor of the Canon EOS-1D Mark III

Canon EOS-1D Mark III

The EOS 1D Mark III is a professional 10.1 megapixel digital single lens reflex camera camera body produced by Canon. The EOS 1D Mark III was announced on February 21, 2007 and is the successor of the Canon EOS-1D Mark II N and was first released in May 2007...

 and was announced on October 20, 2009, just four days after Nikon announced the D3s. It is the first Canon APS-H format DSLR to feature HD video recording at 1080p resolution.

Features

• 27.9mm × 18.6mm; 16.1 effective megapixels APS-H CMOS
  CMOS
  Complementary metal–oxide–semiconductor is a technology for constructing integrated circuits. CMOS technology is used in microprocessors, microcontrollers, static RAM, and other digital logic circuits...
  
   sensor
• Dual DIGIC 4 image processors
• Canon EF lens mount (excludes EF-S)
• New autofocus module (45 AF points with 39 cross-type AF points)
• Integrated sensor cleaning system
• 1.3× crop factor
• 100–12800 ISO
  Film speed
  Film speed is the measure of a photographic film's sensitivity to light, determined by sensitometry and measured on various numerical scales, the most recent being the ISO system....
  
   speed equivalent (expandable to L: 50, H1: 25600, H2: 51200 or H3: 102400)
• 30–1/8000 sec. shutter speed and bulb
• Shutter unit tested to 300,000 cycles
• Auto Lighting Optimizer
• Magnesium Alloy weather sealed body
• Eye-level pentaprism
  Pentaprism
  A pentaprism is a five-sided reflecting prism used to deviate a beam of light by 90°. The beam reflects inside the prism twice, allowing the transmission of an image through a right angle without inverting it as an ordinary right-angle prism or mirror would.The reflections inside the prism are not...
  
   viewfinder with approx. 100% coverage at 0.76× magnification
• Live preview mode
• 3.0 in, 920,000 dots Clear View II TFT color, liquid-crystal monitor with 160° viewing angle
• 10 frames per second continuous shooting (Large JPEG
  JPEG
  In computing, JPEG . The degree of compression can be adjusted, allowing a selectable tradeoff between storage size and image quality. JPEG typically achieves 10:1 compression with little perceptible loss in image quality....
  
  : max. 121 frames, RAW
  RAW image format
  A camera raw image file contains minimally processed data from the image sensor of either a digital camera, image scanner, or motion picture film scanner. Raw files are so named because they are not yet processed and therefore are not ready to be printed or edited with a bitmap graphics editor...
  
  : max. 28 frames)
• Dimensions (W×H×D): 156 × 156.6 × 89.9 mm

External links

• Canon EOS-1D Mark IV Product Page at Canon USA
• Canon EOS-1D Mark IV White Paper at Canon USA
• Canon EOS-1D Mark IV Press Release at Canon Europe