High-Power 500mm f/8.0 Telephoto Mirror Lens + 2x (doubles the zoom to 1000mm) for Canon Digital EOS Rebel T1i, T2i, T3, T3i, T4i, T5i, SL1, EOS60D, EOS70D, 50D, 40D, 30D, EOS 5D, EOS1D, EOS5D III, EOS 6D, EOS 7D Digital SLR Cameras

The High-Power 500mm f/8 Telephoto Lens is a manual focus mirror T-mount lens that is designed to work with full frame cameras and most digital SLR camera models, including Canon, Minolta, Nikon, Pentax, Samsung, and Sony. Its compact size provides superior lightweight handling and maximizes storage convenience. For best results, use with monopod, tripod or chest supports to alleviate shake. It has a minimum focus distance of 5.75 feet and a 5° angle of view. It has a 34mm rear thread. Also includes 2x Converter to allow you to zoom up to 1000mm.