Canon BG-E11 Battery Grip for EOS 5D Mark III (BGE8)

This large capacity battery grip is powered by two Battery Pack LP-E6, six AA-size/LR6 batteries or an optional AC Adapter Kit ACK-E6. It features a variety of operating controls such as shutter button, Main Dial, multi-controller, AF point selection button, AE lock/FE lock button, AF start button, and multi-function button. This is idea for high volume and easy vertical shooting.