Selling my genuine Canon Control Ring Mount Adapter EF to RF Mount. This adapter is used for Canon RF Mount bodies to adapt all EF and EF-S lenses with a control ring function. This works perfectly and is a great adapter with the added control ring functionality. would highly recommend this adapter if you have any EF lenses that you want to adapt to your RF body. I am including the adapter and the front/rear caps for the adapter. Will ship same or next day payment is received via UPS Ground or USPS Priority to 48 states only. I package everything very securely to ensure no damage in transit. Let me know if you have any questions!