Professional lens kit with super telephoto zoom lens with filters, adapter ring and teleconverter lens, replacement for Sony AF mount cameras. Features: Package Included:420-800mm MF super telephoto zoom lens, UV filter, CPL filter, FLD filter, 2X 420-800mm teleconverter lens and T2-AI adapter ring. Professional photography kit for shutterbugs. Super Telephoto Zoom Lens:The lens features manual focusing in F/8.3-16 aperture at 420-800mm focal length, to separately control the super focal zoom from camera. T-Mount to AF-Mount Adapter Ring:T mount lens with adapter ring, replacement for Sony A900/ A850/ A700/ A580/ A560/ A550/ A500/ A99/ A77 cameras. MF 2X Teleconverter Lens:Doubles the power of your lens to 1600mm, adopts high definition and well made with advance technique, the teleconverter can help to shoot clearer pictures of the distant scenery. Universal 1/4 Mounting:The base with 1/4 screw thread down the lens makes wide application on tripod and monopod, the base with ring can rotate, convenient to install in seconds. Specifications: --Telephoto Zoom Lens Color: Black/ White(optional) Material: Metal Mount: T mount(T2) Replacement for: Sony A900/ A850/ A700/ A580/ A560/ A550/ A500/ A99/ A77 Focal Length: 420-800mm zoom lens Aperture: f/8.3@420mm-f/16@800mm Optical Constructions: 4 elements in 2 groups Zoom System: Linear push-pull Exposure: Automatic exposure is available in Aperture Priority mode only for cameras with TTL metering systems; Other camera must be set in full manual Focusing: Manual helical(rotary) operation(Not AF compatible) Minimum Focusing Distance: 1.6 meters(5.25ft) from front lens element Filter Size: 62mm Diameter: 69mm Length: 24-35cm / 9.45-13.38in(with caps) Lens Dimension: 24 * 7 * 7cm / 9.45 * 2.76 * 2.76in --Teleconverter Lens Color: Black Material: Metal and Product Size: 5.5 * 5 * 5cm / 2.1 * 1.9 * 1.9inch Product Weight: 77g/ 2.7oz Packing List: 1 * Telephoto Zoom Lens(with Bag and Caps) 1 * UV Filter(with Storage Holder) 1 * CPL Filter(with Storage Holder) 1 * FLD Filter(with Storage Holder) 1 * Teleconverter Lens(with Bag and Caps) 1 * Adapter Ring 2 * Lens Cleaning Cloth