Feature: 1. EF to EOSR Lens Converter Adapter: Designed for EF EF‑S lenses to be used with EOSR cameras, featuring a dedicated sealing ring for dust and water resistance. 2. Customizable Control Ring: You can change control ring shortcut settings, changing aperture values, shutter speed, and setting ISO sensitivity exposure compensation. 3. Enhanced Data Transmission: Utilizing gold plated copper electronic contacts to improve conductivity and enhance data transfer performance between the lens and camera body. 4. Type C Upgrade Interface: Built in firmware upgrade interface allows compatibility with new camera and lens models, expanding the adapter's versatility. 5. Additional Functions: Lens mount adapter ring supports IS stabilization, EXIF information transmission, and autofocus functionality for an enhanced shooting experience. Specification: Item Type: Lens Adapter Material: Aluminum Alloy + ABS Model: EFTR-B Compatible Lenses: Fit for EF EF-S Lens Series Autofocus Mode: Autofocus Size: Approx. 74.4 x 24mm / 2.93 x 0.94in. Package List: 1 x Lens Mount Adapter 2 x Caps 1 x Instruction Manual