Product picture - Don Zeck C3 Lens Cap for the Canon 200mm f 2.0 IS, 300mm f 2.8 IS, 400mm f 4 DO IS Don, Zeck, C3, Lens, Cap, Canon, 200mm, f, 2.0, IS, 300mm, f, 2.8, IS, 400mm, f, 4, DO, IS Click the image to close this page