Feature: 1. Support for EXIF information transmission, gold‑plated electronic contacts, strengthen data transmission. 2. Support for AF auto focus, fast and clear focus function, can quickly focus even when shooting in moving scenes. 3. The electronic iris is adjustable, and the iris scale is accurate and easy to adjust, making your shooting more professional. 4. Support for IS anti‑shake function, allowing you to shoot pictures in various situations such as sports and snapshots as still clear as usual. 5. Detachable 1/4in tripod base, the tripod base can be connected to the tripod and the light stand. Specification: Item Type: For EF‑EOS R Adapter Material: Aluminum Alloy Color: Black Camera Port Outer Diameter: Approx. 50mm/2.0in Lens Port Outer Diameter: Approx. 65mm/2.6in Weight: Approx. 266.0g/9.4oz Model: For EF‑EOS R Mount: EF/EF-S Mount, For EOS-R Mount Compatible Lens: Fit for EF/EF-S Lens Compatible Camera: Fit for EOS-R Mount Camera Front Mounting: For EF/EF-S Lens Back Mounting: For EOS-R Mount Camera. Package List: 1 x For EF‑EOS R Adapter2 x Adapter Protective Cap(Installed)1 x Manual