The lens mount converter replaces Canon Drop-in Filter Mount Adapter EF-EOS R, which is designed for attaching any EF or EF-S-mount lens to the Canon EOS R100, R50, R50 V, R7, R8, R10, R5C, R3, R5, R1, Mark II, R6, R6 Mark II, RP and R cameras. The adapter comes with a drop-in variable ND filter (ND3-ND500), a circular polarizing filter and a clear filter. No worry to leave a dust gap or light leak onto the camera sensor when the ND or CPL filter is not in use. It retains full autofocus and image stabilization capabilities and contains no optical components, thereby maintaining the original optical quality of the mounted lens. The lens mount adapter is made of high quality metal and non-glare finish inside prevents reflections. Moreover a removable tripod mount with 1/4”-20 screw is included for more stable mounting on a tripod when working with heavier lenses. What You Get: EF-EOS R Adapter Mount x1, Drop-in CPL Filter x1, Drop-in Variable ND Filter x1, Drop-in Clear Filter x1, Front & Rear Lens Cap x1, Storage Pouch x1. The JJC CA-EF_RF_K replaces CAN. Drop-in Filter Mount Adapter EF-EOS R, which allows you to attach CAN. EF/EF-S mount lens to the CAN. EOS R series mirrorless camera body, giving you more choices of choosing lenses and bringing more fun to your shooting. Constructed from high-quality metal material, this adapter is sturdy and durable. The non-glare matte finish inside prevents reflections. Besides, The detachable tripod foot is tapped with a 1/4"-20 tripod socket hole, allowing direct mount to tripods that feature 1/4"-20 screw; designed with Arca Swiss, the tripod foot supports to directly mount to Arca-type quick release clamp and tripod heads. Moreover, the package contains one front cap and one rear cap for your usage of protecting adapter metal contacts from dust entering.