This add-on grip for the EOS 5D Mark IV improves handling when shooting vertically, providing different ergonomics & alternative controls. It also allows two batteries to be used at once so you can shoot for longer before recharging. Features Shoot steadily & comfortably with extra grip when holding your camera vertically Adds an additional set of controls positioned for vertical shooting. Uses two LP-E6/LP-E6N batteries for longer shooting times