Sigma MC-11 Mount Converter/Lens Adapter (Sigma EF-Mount Lenses to Sony E)

The Sigma MC-11 is an electronic mount adapter designed to convert Sigma EF-mount lenses for use on Sony E-mount mirrorless cameras, maintaining a high degree of autofocus and electronic functionality compared to passive adapters. Compatible Sigma lenses with the HSM (Hyper Sonic Motor) or OS (Optical Stabilizer) systems retain autofocus, image stabilization, and aperture control through the adapter, and firmware updates via USB keep compatibility current with new Sony bodies. The adapter communicates lens data to the camera body for EXIF recording and supports Sony’s phase-detection AF on compatible bodies, though performance may vary depending on the specific lens paired. While optimized for Sigma EF-mount glass, the MC-11 also offers partial compatibility with select Canon EF-mount lenses, though Sigma does not officially guarantee full functionality with non-Sigma glass.

– Compatible with Sigma EF-Mount Lenses
– Fits Sony E-Mount Mirrorless Bodies
– Retains AF, IS, and Aperture Control on Compatible Lenses
– Supports Phase-Detection AF on Compatible Sony Bodies
– EXIF Data Transfer
– Firmware Updatable via USB
– Partial Compatibility with Select Canon EF Lenses (Unofficial)
– Compact Low-Profile Design