Feature:1. Customized Functions of the Control Ring: Distinguished from RF lens, EF-R2 adapter ring has an adjustable control ring. Customize buttons, customize dials, customize M-Fn bar.2. Compatible Camera: Compact and beautiful. From lightweight to professional,compatible with Canon EF/EF-S lens attaching to Canon EOS R/RP professional mirrorless camera, extend your lens choices for the beloved camera.3. Compatible Lens: Compatible with Canon EF/EF-S lenses. The huge lens lineup can meet your different needs of shooting.4. Support EXIF Information Transmission: Metal electronic contacts greatly improve the conductivity. After the lens is mounted, you can view the shutter, aperture, ISO and other parameter information on the camera.5. Support Lens Stabilization: Support lens image stabilization technology of the Canon lens IS image stabilizer, which effectively elimates image ghosting and blurring caused by sports shooting or holding shaking.6. USB Firmware Upgrade: There is a built-in firmware upgrade port of the adapter to let it be updated to get compatible with newly released lenses or cameras on the market. Metal Electronic Contacts: Using copper gold-plated electronic contacts to enhance the EXIF information transmitting performance between the lens and the body.Specification:ER-R2 adapter ring with built-in pure copper gold-plated electronic contacts supports auto focus. Functions of the control ring can be customized, and firmware upgrade is via. USB port.Features:Customized Functions of the Control Ring:Distinguished from RF lens, EF-R2 adapter ring has an adjustable control ring. Customize buttons, customize dials, customize M-Fn bar.Compatible Camera:Compact and beautiful. From lightweight to professional,compatible with Canon EF/EF-S lens attaching to Canon EOS R/RP professional mirrorless camera, extend your lens choices for the beloved camera.Compatible Lens:Compatible with Canon EF/EF-S lenses. The huge lens lineup can meet your different needs of shooting.Support EXIF Information Transmission:Metal electronic contacts greatly improve the conductivity. After the lens is mounted, you can view the shutter, aperture, ISO and other parameter information on the camera.Support Lens Stabilization:Support lens image stabilization technology of the Canon lens IS image stabilizer, which effectively elimates image ghosting and blurring caused by sports shooting or holding shaking.USB Firmware Upgrade:There is a built-in firmware upgrade port of the adapter to let it be updated to get compatible with newly released lenses or cameras on the market.Metal Electronic Contacts:Using copper gold-plated electronic contacts to enhance the EXIF information transmitting performance between the lens and the body.Specifications:Model: EF-R2Focus Mode: Auto focusCompatible Lens: EF/EF-S series lensesCompatible Camera: EOSR mountFront Cap: Camera capRear Cap: Lens capItem Size: 78mm * 31mmItem Weight: 152g / 5.4ozPackage Size: 11 * 10.2 * 6.2cm / 4.3 * 4 * 2.4inchPackage Weight: 300g / 10.6ozPacking List:1 * VILTROX EF-R2 Lens Mount Adapter Ring1 * User Manual (English)Package List:1 * VILTROX EF-R2 Lens Mount Adapter Ring1 * User Manual (English)