The Sigma MC-21 Mount Converter / Adapter mounts EF-mount lenses on L-mount camera bodies. For example, the Blackmagic Pocket Cinema Camera 6K Full-Frame. The adapter maintains full lens performance, including auto-focus and auto-exposure. In addition, in-camera correction and image stabilisation.The Sigma MC-21 adapter also has pre-loaded lens data. Thus supporting peripheral illumination, chromatic aberration, and distortion corrective functions. The L-Mount to EF-mount adapters interior is flocked to reduce reflections. In addition, full EXIF data is retained to benefit post-production and file management. Finally, a removable tripod mount is included for more stable mounting when working with heavier lenses.