Both the camera's sensor and processor have been updated, so Mark III owners would likely see an improvement in both the image quality and the camera's speed. 4K video is also a welcome addition to this steady shooter. The camera is also lighter than earlier versions, weighing in at under four pounds. On the outside, the camera wraps up much of the same look and scheme Canon shooters will recognize. The camera now has a touchscreen, though it's not a tilting one.
Like other Canon's, however, the EOS 5D mark IV lags behind main competitor Nikon in battery life. The Nikon D810 also offers a higher resolution sensor and received higher sensor test scores from DXOMark. The 5D does however come out on top for 4K video, autofocus and burst speed. All those features do come at a list price of nearly $4,000. For photographers that need a full frame camera that can keep up with them all day, the Canon 5D Mark IV is an excellent camera -- just be sure to pack an extra battery.