BiG DIGITAL 650-1300mm f/8-16 IF Telephoto Zoom Lens For The Sony Alpha Series SLT-A33, SLT-A35, SLT-A37, SLT-A55, A57, SLT-A57, SLT-A57M, SLT-A57K, A58, SLT-A58, SLT-A58K, A65, SLT-A65V, SLT-A65VL, A77, SLT-A77, A77II, A99, SLT-A99V, A100, A200, A230, A290, A300, A330, A350, A380, A390, A450, A500, A560, A550, A580, A700, A850, A900 Digital SLR Cameras This 650-1300 mm Telephoto Zoom is an amazing photographic tool that provides a maximum of versatility for anyone shooting at a distance from their subject, including sports and wildlife photography. It's compact (just 18.5"/29.7cm long) and it focuses as close as 16.25' (4.95m). Format Compatibility:	35mm Film / Full-Frame Digital Sensor The aperture range is f/8.0 to f/16.0. A T-ring adapter (Included) is required to mount this lens to a camera body.