Package Overview: The Canon EOS 5D Mark IV digital SLR kit includes the camera body and the Canon EF24-70mm f/4L IS II USM lens. Improvements over the 5D Mark III include a new 30.4 Megapixel Full-frame image sensor, the Digic 6+ processor, 4K video capabilities, built-in Wi-Fi and GPS, and a SuperSpeed USB 3.0 interface.
The difference in DOF between a Canon APS-C sensor and a full-frame is slightly more than 1 f-stop (ie; if a 5D Mark II is using a 200mm lens and a 7D is using a 125mm to get an equivalent field of view, the 7D has to shoot at f/1.8 to get DOF as shallow as the 5D has at f/2.8).
shoots raw. Canon EOS 5D Mark II. Canon EOS 80D. A raw image file contains minimally processed data from the image sensor. 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. supports lossless compressed raw.
The EOS 5D Mark III was previously Canon's highest resolution DSLR, with 22 million pixels – but the 5DS more than doubles this at a stroke. Canon EOS 5D Mark III review Camera reviews and news

Canon EOS 5D Mark IV 30.4 MP Full Frame CMOS DSLR Camera (Body) Wi-Fi NFC 4K Video 30.4 MP full-frame CMOS sensor for versatile shooting Up to 7.0 frames per second continuous shooting speed 61-point AF system with 41 cross-points for expanded vertical coverage ISO range 100-32000 with 50-102400 expansion

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canon 5d mark 2 megapixels