B61: Lens for Canon 300mm f2.8L-IS
Lens plate for Canon 300/f2.8-IS & 400/f4-DO-IS. Custom curved flange perfectly seats against heel of tripod foot.
Length = 3.7 in / 94 mm
Width = 1.6 in / 41 mm
Weight = 1.6 oz / 45 g
B-Series Flash Brackets
mount to the Really Right Stuff lens plate (or replacement foot) on your collared lens. The Canon EF 300mm/f2.8L-IS & EF 400mm/f4-DO-IS lenses are compatible with our mid-sized
brackets if you want to place the flash higher over the lens.