Really Right Stuff lens plates are designed for collared, telephoto lenses and precision machined from solid blocks of 6061-T6 aluminum. Fully compatible with any Arca-Swiss style quick-release system, our plates feature precisely contoured anti-twist flanges for a perfect fit that prevents twisting between the lens foot and our plate. This quick release plate utilizes a custom machined 1/4"-20 threaded, captive-style mounting screw that threads into the tripod mounting socket of your lens foot. This lens plate is for Canon 300mm f/2.8L-IS and 400mm f/4-DO-IS.
CNC machined 6061-T6 Aluminum
Anodized; Type II Black
(1) 1/4"-20 threaded accessory mounting socket
What's in the Box?
B61 lens plate for Canon 300mm f/2.8L-IS and 400mm f/4-DO-IS
5/32" hex key for a B107 screw
M2.5 hex key for M3 safety stop screws
M3 safety-stop screw
Plate user’s guide
Length: 3.7" / 94mm
Width: 1.6" / 41mm
Weight: 1.6 oz / 45g
Add quick-release functionality to your collared, telephoto lens
What else do I need?
A tripod head with an RRS compatible quick-release clamp. For a full list of our available items, click HERE.