While Sigma bills the MC-11 as a converter that enables Sigma Canon-mount lenses to be used on Sony cameras (including the superb A-series optics), naturally there’s a lot of interest from photographers with a collection of Canon lenses. With this in mind, I tested the MC-11 with the Sony A7R III and a collection of Canon lenses.
Sigma Mount Converter MC-11
The Sigma MC-11 is a mount converter that attaches to Sony E-mount cameras (full-frame and APS-C format) to enable Canon EF-mount lenses to be used. Sigma also makes the MC-11 with the Sigma SA-mount to enable Sigma SA lenses to be used on Sony cameras.