Canon battery grip BG-E9 (60D)

The "Canon" Battery Grip BG-E9 is a very useful accessory for the EOS 60D DSLR. It not only adds the convenience of a vertical shutter release, but also adds the added benefits of AE/FE lock, AF point selection, zoom button, and aperture exposure compensation. It features an easy-to-use attach/detach mechanism. The grip also provides extra stability for your camera, allowing you to get a better grip. It runs on two optional LP-E6 lithium-ion batteries or six optional "AA" batteries.

Note:
Batteries sold separately
Functions
AE/FE lock
Index
Zoom out button
Main dial
AF point selection
Zoom in button
Aperture/Exposure compensation button
Vertical grip operation switch