Features: Made of high-quality material with excellent craftsmanship, durable and sturdy, rust-resistant and impact-resistant. Specially designed replacement for EF EF-S lens to EOS R RF mount full-frame cameras. With gold-plated contacts, helps improve data transmission performance between the lens and camera. 1/4 inch screw hole design allows easy mounting to a tripod, freeing your hands. Comes with a practical wrench for convenient adapter ring installation and removal. Supports fast and stable autofocus and IS image stabilization function, enabling clearer and higher-quality photos. Supports fast EXIF information transmission and electronic aperture control. Specifications: Model: EF-EOSR Color: Black Material: ABS + Metal Camera Mount Diameter: approx 50mm / 1.96 inches Lens Mount Outer Diameter: approx 65mm / 2.5 inches Product Size: approx 8 x 7 x 3 cm / 3.1 x 2.7 x 1.1 inches Product Weight: 95g / 0.2 oz Package Includes: 1 PC Adapter Ring 1 PC Wrench 1 PC Cleaning Cloth (random color) 1 PC User Manual Note: After installing the adapter ring, please set the lens to AF mode if autofocus is required. Due to lighting effects and shooting angles, there may be slight variations in product appearance. Please allow 0–2 mm error due to manual measurement.