Phottix BG-5DIII Professional Multi Funcation Battery Grip For Canon 5D IIIPhottix Premium Series BG-5DIII Battery Grip for Canon 5D Mark III DSLRs features AF/On, FEL and AF Points buttons, command dial, vertical shutter button and power switch. The BG-5DIII holds 6 AA batteries or 2 LP-E6 batteries.
The Phottix Battery Grip BP-7D for the Canon EOS 7D may contain two LP-E6 batteries or 6 AA batteries (batteries supplied to the store) that allow you to double the battery life of your case. With this grip you will improve the stability of the grip of your digital SLR and shooting vertically. It works in a similar way to grip BG-E7 Canon.
The Phottix Battery Grip BP-550D (BG-E8) Premium Series Vertical Grip/Battery Holder is for Canon EOS 550D / Rebel T2i / 600D / T3i / 700D T4i digital cameras.