Features An adapter ring for connecting camera and telescope, helping to shoot photos of distance scenery. Replacement for Canon EOS 5D, 5D Mark II, 50D, 60D, 20D, 30D, 40D, 350D, 400D, 450D, 500D, 550D, 600D, 1100D, 1D, 1D Mk III, T4i, T3i, T2i, T1i, Xt, Xti, XSi, XS, digital cameras, and other EOS DSLR cameras. Compatible with telescopes with standard 1.25 inch eyepiece, for astrophotography. Made from aluminum alloy with anodic oxidation and CNC technique. With a red dot mark on the ring, point it with the white dot on the camera and then tighten it, the installation work is done. Specifications: Andoer Model: 1.25-T2-EOS Color: Black Material: Aluminum alloy Compatibility: Compatible with Canon EOS 5D, 5D Mark II, 50D, 60D, 20D, 30D, 40D, 350D, 400D, 450D, 500D, 550D, 600D, 1100D, 1D, 1D Mk III, T4i, T3i, T2i, T1i, Xt, Xti, XSi, XS, digital cameras, and other EOS DSLR cameras, telescope with standard 1.25 inch eyepiece Product Size: 6.4 * 4.5 * 3cm/ 2.5 * 1.7 * 1.1inch Product Weight: 71g/ 2.5oz Package Size: 7.5 * 7.5 * 4.5cm/ 2.9 * 2.9 * 1.7inch Package Weight: 82g/ 2.8oz Not suitable for using as replacement for Canon R mount and M mount cameras. Package List 1 * Adapter Ring 1 * Telescope Adapter Tube