Features: Made of high quality material with exquisite workmanship, powerful and sturdy, rust-proof and impact-resistant.<br> Specially designed replacement for EF EF-S lens to EOS R RF mount full frame cameras.<br> With gold-plated contacts, can greatly improve the data transmitting performance between the lens and camera;<br> 1/4 inch screw hole design, can be easily mounted to a tripod-, freeing your hands.<br> Comes with a practical wrench, convenient for adapter ring installation and removal.<br> Support fast- and stable auto-focus and IS image-stabilization function, shooting clearer and more high-quality photos. Support fast- EXIF- information transmission and electronic aperture- control.<br> Specifications: Model: EF-EOSR<br> Color: Black<br> Material: ABS+Metal<br> Camera-Mount Diameter: approx 50mm/1.96inch<br> Lens-Mount Outer Diameter: approx65mm/ 2.5inch<br> Product Size: approx 8x7x3cm/ 3.1x2.7x1.1inches<br> Product Weight: 95g/0.2oz<br> Package Includes: 1PC Adapter Ring<br> 1PC Wrench<br> 1PC Cleaning Cloth (random color)<br> 1PC User Manualv<br> note: After installing the adapter ring, please set the lens to AF-mode if the AF- function is required.<br> Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand.<br> Please allow 0-2mm error due to manual measurment.