Universal quick release lens plate with D ring hinged screw for Canon Nikon 70-200mm lens Arca Sunwayfoto Markins Really Right Stuff RRS Compatible CNC machined from light weight aircraft grade aluminum Satin Anodized Surface - Provides improved abrasion and corrosion resistance Arca-Swiss standard dovetail groove Perfect fit Nikon Canon 70-200mm lens Compatible with Arca Swiss, Really right stuff , Wimberley, Jobu Design, Kirk Enterprises, Markins, Giottos, Benro, Feisol, Novoflex etc