Features: An adapter ring for connecting a camera to a telescope, enabling clearer and more detailed long-distance photography. Designed for use 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, and other EOS DSLR cameras. Compatible with telescopes featuring a standard 1.25-inch eyepiece, ideal for astrophotography applications. Constructed from high-quality aluminum alloy using precision CNC machining and anodized for oxidation and corrosion resistance. Equipped with a red alignment mark for easy installation—align with the white dot on the camera body and tighten securely. Specifications: Model: 1.25-T2-EOS Color: Black Material: Aluminum alloy Compatibility: Canon EOS DSLR cameras including 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; compatible with telescopes with 1.25-inch eyepiece Product Dimensions: 6.4 x 4.5 x 3 cm / 2.5 x 1.7 x 1.1 inches Product Weight: 71 g / 2.5 oz Package Dimensions: 7.5 x 7.5 x 4.5 cm / 2.9 x 2.9 x 1.7 inches Package Weight: 82 g / 2.8 oz Note: Not compatible with Canon R mount or M mount cameras. Package List: 1 x Adapter Ring 1 x Telescope Adapter Tube