Functions: li> Specially designed replacement lens Canon EF EF-S do full-frame cameras Canon EOS R with RF mount. li> 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. li> Made of the highest quality aluminum alloy with excellent workmanship, strong and durable, resistant to rust and impact. li> Thanks to the gold-plated contacts, it can significantly improve the data transmission efficiency between the lens and the camera; 1/4 inch screw hole design, it can be easily mounted on a tripod, freeing your hands. li> < li > Specifications： li> < li > Brand: Andoer li> < li > Model: EF-EOSR li> < li > Black colour li> < li > Material: aluminum alloy li> < li > Camera mounting diameter: 50 mm / 1.96 inch li> < li > Lens mount outer diameter: 65 mm / 2.5 inch li> < li > Product size: 8 * 7 * 3cm / 3.1 * 2.7 * 1.1in li> < li > Product weight: 95g / 0.2oz li> < li > Package Weight: 134g / 0.29oz li> < li > After installing the adapter ring, set the lens to AF mode if AF is required. li> < li > Package List： li> < li > 1 * Adapter Ring li> < li > 1 * Key li> < li > 1*User Manual li> < li > li>