SIGMA MC-11 Mount Converter, CANON EF-E compatible, made in Japan. - Brand: SIGMA - Model: MC-11 - Compatibility: CANON EF-E - Country of Manufacture: Japan - Included Accessories: 2 caps This adapter is used to attach Canon EF lenses to Sony E-mount cameras. Of course, autofocus works. It's a beautiful item, only used once for a graduation ceremony. Recommended for those looking for a beautiful item. I will cover the shipping costs, so thank you.