Feature: 1. PRECISE HOLE POSITION: The bayonet fits perfectly and tightly with the camera and lens, and the hole position is precise, so it is easy and smooth to install and remove. 2. EXQUISITE WORKMANSHIP: The lens adapter is made of aluminum alloy and anodized process, exquisite workmanship, sturdy and wear proof. 3. SELF CONTAINED APERTURE RING: Manual aperture adjustment is possible, the inner wall is matted to avoid the impact of reflected light on the image. 4. RICH FEATURES: Supports full manual control, manual focus, manual exposure, aperture priority, matte paint, able to focus at infinity. This professional adapter device provides a good experience for professional photographers. 5. COMPATIBILITY: The lens adapter ring enables for FD mount lenses to be compatible with the for EOSR series of camera systems, including for EOSR, RP, Ra, R5, R6, R3, R5C, R7, R10, R6Mark II, R50, R100 and other cameras. Specification: Item Type: Camera Lens Adapter Ring Material: Aluminum Weight: Approx. 67g / 2.4oz Mount: For FD Mount, For EOSR Mount Compatible Lenses: For FD Mount Lenses Compatible Cameras: For EOSR, RP, Ra, R5, R6, R3, R5C, R7, R10, R6Mark II, R50, R100 And Other Cameras.. Package List: 1 x Camera Lens Adapter Ring Note: The adapter ring is a manual adapter and is not equipped with electronic contacts, and when installed, it loses the ability to supply power to the lens, so lens functions that depend on electronic communication with the camera body (autofocus, AE metering, image stabilization, etc.) will be disrupted and will need to be manually reset.