The Canon 5D Mark IV improves on the 5D Mark III with a boost in megapixels, ISO, shooting speed, a touchscreen LCD, built-in WiFi, and, most notably, with 4K video and Dual Pixel CMOS AF. Low light performance is improved overall with the DIGIC 6+ image processor, which can also shoot at a quicker 7 FPS over the 5D Mark III's maximum of 6 FPS. There is a new AF Area Select button for much more immediate access to this setting, which is helped even further by an improved 61-point High Density Reticular AF for super fast tracking.
