For photographers who want to shoot for longer with the EOS 5D Mark III, the new ergonomic battery grip BG-E11, doubles the battery life with two additional LP-E6 batteries, with the added flexibility of using AA batteries as an emergency back-up.
For those who frequently shoot vertically, such as sports or portrait photographers, duplicate AF start, Focus point and AE-lock controls in addition to a second Multi Controller and Control Dial make shooting vertically more comfortable and intuitive.

In keeping with the premium design of the EOS 5D Mark III, the BG-E11 is made of durable magnesium alloy and offers the same high standard of weather-proofing - ideal for harsher shooting environments.

Key features.

Improved handling for EOS 5D Mark III
Duplicate controls for vertical shooting.
Larger grip for bigger hands.
Use two LP-E6 batteries, or four AA/LR6 cells as an alternative.