The Canon BG-E9 Battery Grip is an optional power pack designed specifically for the Canon EOS 60D Digital SLR Camera. It holds up to two LP-E6 battery packs or six AA Batteries, offering double-length shooting time. This is especially useful when taking advantage of the camera in Movie Mode, Live View Mode and other operating modes that use more power. Furthermore, the BG-E9 provides full vertical shooting controls, which can be independently turned on or off as the photographer needs to enhance camera handling, especially for shooting vertical pictures. In addition, the BG-E9 features a shutter button, control dial, AE FE Lock, exposure compensation and AF point selection buttons for use in the vertical/portrait orientation.