Nikon AF-S FX NIKKOR 200-500mm f/5.6E ED Vibration Reduction Zoom Lens with Auto Focus for Nikon DSLR Cameras Compact super telephoto zoom lens for birding, wildlife, motorsports, events and more 500mm of zoom power on FX-format DSLRs; 750mm equivalent on DX-format DSLRs, minimum focus Distance: 7.2 ft.( 2.2 m), focal length range: 200 -500 mm Fast f/5.6 constant aperture for beautiful out-of-focus backgrounds and low-light performance 4.5 Stops of vibration reduction with sports mode. Approx. Weight- 81.2 ounces approx. Dimensions(diameter x length)- 4.2 inch x 10.5 inch( based on CIPA guidelines ) Af compatible with optional tc-14e series Teleconverters and DSLRs that offer f/8 support.Mount type: Nikon f-bayonet