Phottix BP-7D (BG-E7) Premium Series Battery Grip for Canon EOS 7D Digital SLR Camera
Phottix Premium Series BP-7D Vertical Grip/Battery Holder for Canon EOS 7D digital cameras. This battery grip can hold two Battery Packs LP-E6 or six size-AA/LR6 batteries. It is equipped with a vertical-grip shutter button, Main Dial, AE lock/FE lock and AF point selection controls for easier vertical shooting. It works with 1 or 2 LP-E6 Lithium-Ion rechargeable batteries. Also has Tripod Socket.