500mm BOWER Telephoto Lens for CANON EOS mount Lens employs a Canon T-Mount Adapter (included), and will work with virtually any Canon EOS SLR -Film or Digital. Use this lens with the Canon EOS 650, Elan, Ti, Rebel G, Rebel XTi, XSi, 30D, 50D, T1i, and many more.The BOWER 500mm is all BLACK. It utilizes Aluminum Alloy construction for strength yet remains lightweight.Product Features: Aperture settings from f/8 to a very usable f/32 ! 4 Elements/ 4 Group Optic Construction Minimum focusing distance is 33ft (10.0m) Filter Size is 67mm Length is 11.70 in (focused Close In) Weight is 22.6oz Uses a T-Mount Adapter (CANON EOS Adapter included) Has an Adjustable Tripod Mount Includes Soft Case, Front & Rear Caps Comes with a USA Full One-Year WarrantyThis is a Preset, Manual Focus Lens. Meter coupling on Preset lenses must be done manually; however, some cameras have Exposure Confirmation that verifies metering adjustment -refer to your camera manual.