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The EOS-1D Mark IV is a professional 16.1 effective megapixels digital single lens reflex camera (DSLR) camera body produced by Canon. The EOS-1D Mark IV is the successor of the Canon EOS-1D Mark III and was announced on 20 October 2009,^[4] just four days after Nikon announced the D3s. It used to be the only Canon APS-H format DSLR to feature HD video recording at 1080p resolution.^[5]

It was discontinued in mid-2012 with the introduction of the Canon EOS-1D X, which replaced both the EOS-1D Mk IV and the EOS-1Ds Mk III.^[6]

It received a Gold Award from Digital Photography Review.

Features

27.9mm × 18.6mm; 16.1 effective megapixels APS-H CMOS sensor^[5]
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 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 viewfinder with approx. 100% coverage at 0.76× magnification^[5]
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: max. 121 frames, raw: max. 28 frames)
Dimensions (W×H×D): 156 × 156.6 × 89.9 mm

^ "EOS-1D Mark IV". Canon Camera Museum.
^ "What's New in the EOS-1D Mark IV: Improved CMOS Sensor".
^ "Canon EOS-1D X". Canon Camera Museum.
^ "Canon Europe – Introducing the Canon EOS-1D Mark IV". 20 October 2009. Archived from the original on 24 August 2013. Retrieved 20 October 2009.
^ ^a ^b ^c "Canon EOS-1D Mark IV Digital SLR". 20 October 2009. Archived from the original on 24 June 2010. Retrieved 20 October 2009.
^ Alexandra Chang (19 October 2011). "Canon announces EOS-1D X DSLR camera for pros". Macworld. Retrieved 9 January 2012.