NiSi 77mm Adapter Nikon 14-24 Lenses Filter Holder NiSi 77mm Adapter For Nikon 14-24 Lenses Filter Holder can apply Nikon 14-24 Lenses Filter Holder to other 77mm lens. Made from aviation-grade aluminum with single element processing by CNC machine. With matte black frosted finish on the surface. All of the screw accessories are made of copper and with black nickel plating. Individual package.