Canon BG-E14 Digital camera battery grip Black

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,, AF point selection button, AE lock/FE lock button, AF point selection button, and AF start button. This is ideal for high volume and easy vertical shooting.