1:1 Opening: The bayonet perfectly fits the camera and lens. The combination is tight, and the installation and disassembly are convenient and . High Accuracy: Lens converter ring with a strong and stable performance makes your focus more accurate and clear, which better helps you take pictures. Compatibility: Lens mount adapter compatible for EF bayonet lens and for RF bayonet camera, R, RP, Ra, R5, R6, R3, R5C, R7, etc. Rich Features: Support full manual control, manual focus, manual exposure, aperture priority, matte paint, infinite focus allowed. Exquisite Workmanship: Lens mount adapter is made of aluminum alloy material, adopting anode oxygen oxidation process, strong and wear proof.