I received this from an acquaintance. I'm selling it because I don't use it. I opened it to take photos. Product Description: Mount Front: Canon EF and EF-S series Rear Bayonet Type: EOS M Stativbefestigung: 1/4 inch screw Size: 67 mm x 26 mm Weight: Approx. 120 g - With this, you have full access to the entire range of Canon EF and EF-S lenses. - This adapter allows the use of all lenses from Canon EF and EF-S lenses to EOS M System, compatible with EOS. - Sturdy metal construction / 1/4" tripod screw - So your lenses, including those you already own, can be used with EOS M. Meike MK-C-AF4 Adapter Ring for Canon EF and EF-S - for EOS *New and unused. Please purchase with understanding. Product images may be illustrative for clarity, so please be sure to confirm the actual product before purchasing! Please feel free to comment if you have any questions. This is a first-come, first-served basis, so even if you comment, the item will go to the person who purchases it first. Thank you. *No comment/Immediate purchase OK *One item only, first-come, first-served *Welcome to bulk purchase! Please comment.