The BG-E4 is a battery grip designed especially for the EOS 5D. Constructed with the same magnesium alloy as the camera's exterior, it has a solid and comfortable hold. The grip can accommodate two BP-511A/514/512/511 battery packs or six AA batteries. The Battery Grip BG-E4 features a shutter release button, AE/FE lock button, AF point selector and main dial to enable comfortable use of the camera when held vertically.
This grip is not suitable for use with the Canon EOS 5D Mark II. The Grip suitable for use with this camera is the BG-E6.>
Battery Grip or Canon EOS 5D