Functions: liandgt Specially designed replacement lens Canon EF EF-S do full-frame cameras Canon EOS R with RF mount. liandgt Support fast and stable autofocus and IS image stabilization, taking clearer and more high-quality photos. It also supports high-speed EXIF information transmission and electronic aperture control. liandgt Made of the highest quality aluminum alloy with excellent workmanship, strong and durable, resistant to rust and impact. liandgt Thanks to the gold-plated contacts, it can significantly improve the data transmission efficiency between the lens and the camera 1 or 4 inch screw hole design, it can be easily mounted on a tripod, freeing your hands. liandgt andlt li andgt Specifications: liandgt andlt li andgt Brand: Andoer liandgt andlt li andgt Model: EF-EOSR liandgt andlt li andgt Black colour liandgt andlt li andgt Material: aluminum alloy liandgt andlt li andgt Camera mounting diameter: 50 mm or 1.96 inch liandgt andlt li andgt Lens mount outer diameter: 65 mm or 2.5 inch liandgt andlt li andgt Product size: 8 x 7 x 3cm or 3.1 x 2.7 x 1.1in liandgt andlt li andgt Product weight: 95g or 0.2oz liandgt andlt li andgt Package Weight: 134g or 0.29oz liandgt andlt li andgt After installing the adapter ring, set the lens to AF mode if AF is required. liandgt andlt li andgt Package List: liandgt andlt li andgt 1 x Adapter Ring liandgt andlt li andgt 1 x Key liandgt andlt li andgt 1xUser Manual liandgt andlt li andgt liandgt