Fotasy Long Arca Swiss Compatible Quick Release Lens Plate for Canon, Nikon, Olympus, Pentax, Sigma, Sony tele lenses, with Fotasy Premier Cleaning Cloth 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 quick release plate 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). Recommended for following lenses: Canon 300mm F2.8 IS USM 400mm F2.8 IS 500mm F4.0 IS 600mm F4.0 IS 600mm F4.5 800mm F5.6 IS; Sigma 300-800mm F5.6 500mm F4.5 HSM 800mm F5.6; Pentax 600mm F4.0 AF SMCP-FA 800mm F6.7 IF SMCP-67 1200mm F8.0 MF SMCP-A; Minolta 600mm F4.0 Lens; Sony 300mm F2.8 Lens; Nikon 200-400mm F2.8 MF 200-400mm F2.8 VR Lens Size: 11.80 x 140 x 38.10mm