The Jobu Design Surefoot Bodyplate 2 is an anti-twist, square-format quick release plate for Nikon and Canon professional DSLR cameras, or cameras with an accessory battery pack. The curve on the back of the plate is 1/2" (1.27 cm) so it will comfortably fit the camera body and it has a 1/4" (0.63 cm) threaded accessory hole.
The Surefoot Bodyplate 2 fits the following cameras and battery packs: For Nikon:
D1, D2H, D2X, D3, and D3X series DSLRs Battery Packs:
MB-D10, MB-D80, MB-D200, MB-D100, and MB-40 For Canon:
EOS 1D and 1DS series DSLRs Battery Packs:
BG-1E, BG-E3, BG-E4, and BG-E5