Albinar 500mm f/8 Super Telephoto Mirror Lens for Canon EOS Cameras 1d,1ds,Mark II, III, IV, 5D, Mark II, 7D, 10D, 20D, 30D, 40D, 50D, 60D, Digital Rebel xt, xti, xs, xsi, t1i, t2i, t3, t3i, 450D, 500D, 550D, 1000D, 1100D, 600D 500mm f/8 Studio Series Telephoto Manual Mirror Lens Use with manual or automatic SLR & DSLR cameras Multi Coated low-dispersion glass, anti-reflection coating A Multi-coated low-dispersion glass capable of producing sharp, high definition images T-Mount Lens (T2-thread) with EOS Camera adapter