Sigma MC-21 Mount Converter EF to L-Mount

TheSigma MC-21 Mount Converter EF to L-Mount allows you to use Sigma EF-mount lenses on L-mount mirrorless cameras while maintaining full functionality. That includes autofocus in AF-S mode, auto exposure, in-body image stabilization, and in-camera corrections for distortion, vignetting, and chromatic aberration.

It features an LED indicator to confirm lens compatibility and comes preloaded with lens profile data to support in-camera image optimization. The interior is flocked to suppress internal reflections and preserve image quality. It also retains full EXIF data, which helps with post-production and media management. A removable tripod mount is included for added stability when working with larger lenses.

Note: The MC-21 is designed for Sigma EF-mount lenses. Compatibility with third-party EF lenses may vary.

Compatible Cameras:

Mirrorless Cameras

• Leica CL
• Leica SL (Typ 601)
• Leica SL2
• Leica SL2-S
• Leica SL3
• Leica SL3-S
• Leica T
• Leica TL
• Leica TL2
• Panasonic Lumix S1
• Panasonic Lumix S1 II
• Panasonic Lumix S1 IIE
• Panasonic Lumix S1H
• Panasonic Lumix S1R
• Panasonic Lumix S1R II
• Panasonic Lumix S5
• Panasonic Lumix S5 II
• Panasonic Lumix S5 IIx
• Panasonic Lumix S9
• Sigma BF
• Sigma fp
• Sigma fp L

All Cine Cameras

• Blackmagic Design Cinema Camera 6K (L-Mount)
• Blackmagic Design PYXIS 6K (L-Mount)
• Blackmagic Design PYXIS 12K (L-Mount)

Still Cameras & Housing