Opteka 650-1300mm f/8 HD Telephoto Zoom Lens for Olympus EVOLT E-1, E-3, E-5, E-30, E-300, E-330, E-410, E-420, E-450, E-500, E-510, E-520, E-600, E-620 Digital SLR Cameras Manual focus telephoto lens compatible with full-frame sensors as well as APS-C sensors 8 Lens elements in 5 groups, low-dispersion multi-coated HD optical glass to reduce flare Great for the wildlife or nature photographer who wants to be hidden while taking photos of the subject Built-in tripod collar for improved lens balance Newly improved 2017, digitally-optimized telephoto zoom lens