Amazon.com : Deco Photo 500mm f/8 Universal Professional High Definition Multi Coated Telephoto Lens for Canon, Nikon, Sony, Olympus, Panasonic, Fuji, and Pentax Cameras (T-Mount Not Included) : Electronics
Amazon.com : Minolta 500mm F/8 Auto Focus Mirror Lens - Fixed : Camera Lenses : Electronics
Amazon.com: GOSHYDA 500mm F8‑F32 Manual Focusing Long Shot Fixed‑Focus Telephoto Lens for Nikon F Mount Camera, with 2X Teleconverter(White) : Electronics