Vivitar 500mm "F/6.3" DX Telephoto Mirror Lens For Olympus Evolt E-1, E-3, E-5, E-30, E-300, E-330, E-400, E-410, E-420, E-450, E-500, E-510, E-520, E-600, E-620, Panasonic L10, L1, Leica DIGILUX 3, Four Thirds Digital SLR Cameras Ultra-telephoto range in a compact, lightweight form with advanced reflex design Super Spectra lens coatings provide even light transmission and minimize flaring The Vivitar 500 f/6.3 Mirror Tele Lens has a focal distance of 500mm and a good speed of 1:6.3. The sturdy metal housing and the high-quality workmanship and mechanics ensure a good image quality. 7 elements in 6 groups. T-Mount Included The 500mm f/6.3 Telephoto Mirror Lens Vivitar is a telephoto lens in a lightweight, compact form. perfect for wildlife, nature, sports, and landscape photography.