Description: This adapter ring allow any T and T2 mount telescopes, lens and accessories used for Canon DSLR / SLR camera body. Accurate focus, multi-point focusing on the body for EOS, brings more flexibility in composition. The electronic chip adapter ring has a focus prompt (the focus is bright red and there is a focus sound). When installing, connect the ring to the lens first, then connect the lens to the body, installation is very convenient and fast. All metal design, steady and durable in use. Specification: Material: Metal Diameter: Approx. 64 mm/2.52 inch Height: Approx. 15 mm/0.59inch Packaging Material: Paper Box Package Includes: 1 Piece T T2 to EOS Mount Adapter Ring Note: Please allow a slightly errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understanding and attention