Sigma has announced an adapter for Sony E-mount cameras, making it possible to use Sigma's most recent lenses in Canon and Sigma mount on full-frame or APS-C E-mount bodies. The MC-11 adapter is able to use phase detection AF with adapted lenses, and makes use of both camera and lens stabilization when present. An LED display on the side of the mount provides compatibility information of attached lenses. The adapter also communicates EXIF data to the camera body, and retains profiles of compatible lenses – those included in Sigma's Global Vision line – to optimize AF performance. 

Sigma has not announced pricing or availability at this time.

Press release:

New Sigma Global Vision Lens Mount Converter Expands High-Performance Lens Options for Sony Cameras

Brings Sigma’s Global Vision Lenses to the Sony E-Mount Camera Family

KANAGAWA, JAPAN — February 23, 2016 – Sigma Corporation of America, a leading DSLR lens, camera, flash and accessories manufacturer, today announced the release of its new high-performance Sigma Global Vision lens converter – the Mount Converter MC 11 – for Sony E-mount, full frame and APS-C sensor cameras. With the new MC-11, Sony camera users will be able to utilize 19 Global Vision lenses in Sigma Canon Mount (EOS) and Sigma Mount (SA).

“There are many challenges to designing high-quality mount converter and topping the list is aptly handling phase detection AF in newer cameras and this is where the Sigma MC-11 is groundbreaking in its support for the Sony E-mount systems,” states Mark Amir-Hamzeh, president of Sigma Corporation of America. “The new Sigma MC-11 mitigates complications with a purpose-built lens control data system engineered for maintaining superior AF functionality. So the growing number of Sony E-mount camera users who have been asking for more lens options, now have access to a large pool of lenses that fully embody Sigma’s signature quality and performance.” 

The Sigma MC-11’s sleek LED display lets Sony users know if the attached Sigma lens is compatible and whether or not the MC-11 needs to be updated for that specific lens. Its internal control data system keeps detailed information on each compatible Sigma lens, automatically optimizing performance of AF drive, aperture control and other critical lens functions. The MC-11’s internal control data system also maintains continuity with key camera functions that control brightness and correct transverse chromatic aberration, distortion, and more. The complete compatibility with both Sigma lens OS and Sony in-camera OS ensures correction of camera shake and other stability issues and when used with in-camera stabilization, MC-11 allows angle shake correction in the lens. The integrated flocking helps prevent internal reflections and reduction in lens performance. In addition, the MC-11 retains important EXIF data ensuring users can analyze every detail of their lens setting. 

The Sigma MC-11 converter can be updated with the latest compatible lens information from a workstation or laptop using the Sigma Optimization Pro software and Sigma USB Dock (sold separately).

For more information on the Sigma MC-11 converter please visit www.sigmaphoto.com/mount-converter-mc-11