Vivitar 500mm "F/6.3" DX Telephoto Mirror Lens + 2x Teleconverter = 1000mm For Nikon 3000, D3100, D3200, D3300, D5000, D5100, D5200, D5300, D7000, D7100, DF, D3, D3S, D3X, D4, D40, D40x, D50, D60, D70, D70s, D80, D90, D100, D200, D300, D600, D610, D700, D750, D800, D800E, D810 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. 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. It comes complete with a 2x Teleconverter + T-Mount Ring + soft pouch