The Battery Grip BG-E8 holds up to two LP-E8 battery packs or six AA
Batteries to offer double-length shooting time. The vertical shutter release
makes shooting with the camera in a vertical position just as comfortable as
The following functions are available in the vertical shooting position.
Shutter-Release, Main Dial, AF Point Selection, AF/FE Lock, Index, Aperture,
Exposure Compensation Button, Reduce Button.