Arca-Swiss design, It fits all the Arca-type quick release adapters, which are made by many different companies such as Acratech, Arca-Swiss, Foba, Graf/Studioball, Gitzo, Novoflex, NPC and Wimberley.
This LP Series quick release plate for lenses is made of satin black anodized aluminum, with anti-twist flanges to trace the edges of the lens' tripod collar.
Dual Safety Stops. The safety stops at the front & back of the lens plate prohibit your lens from accidentally slipping out of the quick release adapter(easily removed with supplied hex wrench if desired).
Works with All Common Flash Brackets. Drilled holes accept flash arms from Kirk & Really Right Stuff. Dimension (H x L x W) : 11.80MM x 169.42MM x 38.10 mm
Compatible to following lens: (1) Canon Lens 400MM F2.8 non IS, 400MM F2.8 IS, 600MM F4.0 non IS, 600MM F4.0 IS, 600MM F4.5, 800MM F5.6 non IS, 800MM F5.6 IS; (2) Minolta Lens 600MM F4.0; (4) Pentax Lens 250-600MM F5.6 ED(IF), 600MM F4.0 AF SMCP-FA, 800MM F6.7 IF SMCP-67; (5) Sigma Lens 150-500MM, 300-800MM F5.6, 500MM F4.5 HSM, 800MM F5.6