Features： Specially designed replacement for Canon EF EF-S lens to Canon EOS R RF mount full frame cameras. Support fast and stable auto focus and IS image stabilization function, shooting clearer and more high-quality photos. Also support fast EXIF information transmission and electronic aperture control. Made from premium aluminum alloy with exquisite workmanship, powerful and sturdy, rust-proof and impact-resistant. With gold-plated contacts, can greatly improve the data transmitting performance between the lens and camera; 1/4 inch screw hole design, can be easily mounted to a tripod, freeing your hands. Comes with a practical wrench, convenient for adapter ring installation and removal. Specifications： Brand: Andoer Model: EF-EOSR Color: Black Material: Aluminium alloy Camera-Mount Diameter: 50mm/ 1.96inch Lens-Mount Outer Diameter: 65mm/ 2.5inch Product Size: 8 * 7 * 3cm/ 3.1 * 2.7 * 1.1inch Product Weight: 95g/ 0.2oz Package Size: 10.8 * 9.3 * 5.8cm/ 4.2 * 3.6 * 2.2inch Package Weight: 134g/ 0.29oz Note: After installing the adapter ring, please set the lens to AF mode if the AF function is required. Package List： 1 * Adapter Ring 1 * Wrench 1 * User Manual