SIGMA MC-11 Mount Converter. This is the MC-11 (EF → E). There is a small paint chip in one place (around the middle of the second photo), but otherwise, there are no noticeable scratches. Please check the photos for the detailed condition. Regarding usage, I have used it without any particular problems, but please understand that the condition, including the appearance, is based on a layman's inspection. Comes with the original box, USB cable, and instruction manual (but no receipt). Mount Adapter Sigma - Brand: SIGMA - Model Name: MC-11 - Accessories: Original box, instruction manual (no receipt) - Country of Manufacture: Japan Thank you for viewing.