Fotasy Pro QR Quick Release Arca Swiss Type Plate for Canon 5D III Camera Desinged for Canon EOS 5D III 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 Pro LP quick release plate is made of satin black anodized aluminum, with anti-twist flanges to trace the edges of the lens' tripod collar. The safety stops of the lens plate prohibit your lens from accidentally slipping out of the quick release adapter(easily removed with supplied hex wrench if desired).