Bower 500mm f/8 Telephoto Mirror Lens + 2x Teleconverter = 1000mm For Canon Digital EOS Rebel SL1 (100D), T5i (700D), T4i (650D), T3 (1100D), T3i (600D), T1i (500D), T2i (550D), XSI (450D), XS (1000D), XTI (400D), XT (350D), 1D C, 70D, 60D, 60Da, 50D, 40D, 30D, 20D, 10D, 5D, Mark II, III, 1D X, 1D C, 1D Mark IV, 1D(s)Mark III, 1D(s)Mark II(N) , 5D Mark 2, 5D Mark 3, 7D, 6D Digital SLR Cameras This Telephoto lens is perfect for Wildlife, Travel, Nature, Sports, Animal, and Landscape Photography. Compact and lightweight ultra telephoto. Using an advanced reflex design, our lens is a fraction of the size and weight of a traditional 500mm. With a very short closest focusing distance of only 1.7 metres, the lens enables very good magnification. Thanks to its easy handling, the lens is also especially suitable for beginners. It comes complete with a 2x Teleconverter, T-Mount Ring, soft pouch and three (3) rear mounted, 30.5mm filters, (ND-2X, ND-4X & Skylight).