Our standard 3.5" lensplate comes with the following features:
Hard anodized black finish
Double-dovetail design enables use of our Quick Release flash brackets (requires 3/4" of lensplate exposed past your lens foot)
Curved hard-stop prevents rotation of lenses
One 1/4"-20 captive screw
2x Safety-screw
5/32" and 3/32" allen keys
Fits Most small telephoto such as:
300 mm F4
70-200 F2.8 or F4
400 F5.6
300mm F2.8