1、Commlite CM-EF-EOS R new Electronic AF Lens Mount Adapter is suitable for Canon EF/EF-S lens to fit for Canon EOS R RF-mount full-frame camera. 2、Support EXIF Information Transmitting: The gold-plated contatcs pin design greatly improves its conductivity and achieves EXIF INFO; After connected to the Can0n lens, you can see the relevant parameter, such as aperture, shutter speed, exposure parameters, etc. Transmitting function perfectly makes lens compatible with camera. 3、Support Auto-focus Function: Strong stability, fast, smooth auto focus performance reveals the powerful connection technology, quickly adjust the aperture, shutter, ISO and other settings, perfect control your lens. 4、Electronic Aperture Control: Adjust the aperture quickly and effectively by controlling lens connected with mount adapter through the EOS R camera body side, great convenience in use. 5、Support IS Image Stabilization Function: Support lens image stabilization function for Canon lens which effectilvely eliminate image ghosting or blurring caused by motion shooting or camera body shake. 6、Gold-plated Contact, Detachable 1/4 Inch Tripod Foot; Made of Aluminum Alloy, Powerful and Stable. 7、Support Auto-focus Function: Strong stability, fast, smooth auto focus performance reveals the powerful connection technology, quickly adjust the aperture, shutter, ISO and other settings, perfect control your lens. Electronic Aperture Control: Adjust the aperture quickly and effectively by controlling lens connected with mount adapter through the EOS R camera body side, great convenience in use. 8、Support IS Image Stabilization Function: Support lens image stabilization function for Canon lens which effectilvely eliminate image ghosting or blurring caused by motion shooting or camera body shake. Made of Aluminum Alloy, Powerful and Stable: With aluminum alloy material and CNC technology, connect the lens without deformation and bending, it is precise, stable owns top quality. 9、Gold-plated Contact, Detachable 1/4 Inch Tripod Foot: The gold plated electronic contact design which highly enhance the data transmitting performance between lens and camera body. Additionally, the mount lens adapter can be applied flexibly to telephoto lens machanical load bearing for its 1/4 inch detachable tripod foot at the bottom to protect the lens and camera body contacts.Specifications:Compatible Cameras: For RF-mount camerasCompatible Lenses: For EF/EF-S series lensesTripod Screw: 1/4 inch threadCamera mount Diameter: 50mmLens mount Outer Diameter: 65mmItem Weight: 175g / 6.2ozPackage Size: 11 * 9.8 * 5.7cm / 4.3 * 3.9 * 2.2inchPackage Weight: 235g / 8.3oz Specifications:Compatible Cameras: For RF-mount camerasCompatible Lenses: For EF/EF-S series lensesTripod Screw: 1/4 inch threadCamera mount Diameter: 50mmLens mount Outer Diameter: 65mmItem Weight: 175g / 6.2ozPackage Size: 11 * 9.8 * 5.7cm / 4.3 * 3.9 * 2.2inchPackage Weight: 235g / 8.3oz 1 * Lens Mount Adapter1 * User Manual 1 * Wrench