Review on Enhance Your Sony E-Mount Camera with Sigma MC-11 Lens Mount Converter (Canon EF). Includes Bonus 32GB SD Card! by German Diaz

I wasn't expecting entry-level performance from this device, but I was blown away. My Canon lenses adapt to my A7iii and work like Sony lenses. In fact, my Sony 70-200 is sharper and the autofocus reaches 85 1.4GM. The Sigma 35 behaves exactly like the native EF mount version, except for focus noise, and even my unsupported Canon lenses work at full autofocus, including eye AF. At $249 it should be, but at $149 it's not a problem. Canon lenses are now being offered at huge discounts as people make the switch to mirrorless cameras. It's time to get Star Glass!