The Canon BG‎-E11 Battery Grip is an optional battery grip with improved ergonomics designed specifically for the Canon EOS 5D Mark III‎,‎ 5DS‎,‎ and 5DS R‎.‎ It allows users to load a choice of one or two LP‎-E6 battery packs‎.‎ With two packs‎,‎ the already‎-impressive battery life is doubled‎,‎ compared to using a single LP‎-E6 pack in‎-camera‎.‎ This is especially useful when taking advantage of the camera‎'‎s movie mode or Live View mode ‎- operating modes that use more power‎.‎ In addition‎,‎ with the included battery magazine‎,‎ you can also run the camera off six AA batteries‎.‎

The BG‎-E11 also provides full vertical shooting controls‎,‎ which can be independently turned on or off as the photographer needs to enhance camera handling‎,‎ especially for shooting vertical pictures‎.‎ It has a large number of operating controls as well‎:‎ shutter button‎,‎ Main Dial‎,‎ multi‎-controller‎,‎ AF point selection button‎,‎ AE lock/FE lock button‎,‎ AF start button‎,‎ and multi‎-function button‎.‎