The Sigma MC-11 Mount Converter (Canon EF to Sony E) allows Canon EF mount Sigma lenses to be used on Sony E-mount mirrorless cameras with full autofocus support including phase-detection AF and eye-detection. It retains communication between lens and camera for OSS control, EXIF data, and firmware updates. The MC-11 is compatible with select Sigma Global Vision lenses.
Product released: March 3, 2016
Latest firmware version
Version 1.43, released August 27, 2026
Last checked for updates: Oct 31, 2026 17:41 UTC
What's new in version 1.43
・Added support for the Sigma High Speed Zoom Line 18-35mm T2 for Canon EF mount, firmware Ver. 1.01.・Added support for the Sigma FF High Speed Prime Line 35mm T1.5 for Canon EF mount, firmware Ver. 1.01.・Improved a release time lag issue that occurs under specific settings during flash photography.
LatestUpdate has tracked 43 versions of Sigma Mount Converter MC-11 (EF to Sony E) firmware, released between May 13, 2016 and August 27, 2026.
Version 1.43 - August 27, 2026: ・Added support for the Sigma High Speed Zoom Line 18-35mm T2 for Canon EF mount, firmware Ver. 1.01.・Added support for the Sigma FF High Speed Prime Line 35mm…
Version 1.42 - December 22, 2022: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Version 1.41 - August 25, 2022: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Version 1.40 - April 7, 2022: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Version 1.39 - October 21, 2021: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Version 1.38 - July 8, 2021: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Version 1.37 - December 17, 2020: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Version 1.36 - November 19, 2020: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Version 1.35 - October 22, 2020: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Version 1.34 - September 17, 2020: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Version 1.33 - August 20, 2020: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Version 1.32 - July 21, 2020: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Version 1.31 - June 25, 2020: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Version 1.30 - April 23, 2020: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Version 1.29 - January 23, 2020: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Version 1.28 - December 19, 2019: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Version 1.27 - November 22, 2019: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Version 1.26 - June 20, 2019: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Version 1.25 - May 23, 2019: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Version 1.24 - April 18, 2019: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Version 1.23 - March 14, 2019: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Version 1.22 - February 21, 2019: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Version 1.21 - January 24, 2019: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Version 1.20 - November 29, 2018: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Version 1.19 - October 30, 2018: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Version 1.18 - October 16, 2018: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Version 1.17 - October 2, 2018: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Version 1.16 - September 10, 2018: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Version 1.15 - July 13, 2018: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Version 1.14 - June 12, 2018: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Version 1.13 - May 23, 2018: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Version 1.12 - March 7, 2018: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Version 1.11 - September 8, 2017: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Version 1.10 - August 18, 2017: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Version 1.09 - August 4, 2017: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Version 1.08 - July 20, 2017: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Version 1.07 - July 5, 2017: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Version 1.06 - June 6, 2017: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Version 1.05 - May 17, 2017: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Version 1.04 - March 21, 2017: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Version 1.03 - December 13, 2016: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Version 1.02 - October 27, 2016: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Version 1.01 - May 13, 2016: It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.Fixed a problem in which the MF assist func…
Update prediction
A firmware update is expected soon, between September 12, 2026 and December 22, 2026.
Sigma typically releases firmware updates for this product approximately every 614 days.
What is Sigma Mount Converter MC-11 (EF to Sony E)?
The Sigma MC-11 Mount Converter (Canon EF to Sony E) allows Canon EF mount Sigma lenses to be used on Sony E-mount mirrorless cameras with full autofocus support including phase-detection AF and eye-detection. It retains communication between lens and camera for OSS control, EXIF data, and firmware updates. The MC-11 is compatible with select Sigma Global Vision lenses. It was originally released on March 3, 2016.
What is the latest firmware version of Sigma Mount Converter MC-11 (EF to Sony E)?
The latest firmware version of Sigma Mount Converter MC-11 (EF to Sony E) is 1.43. It was released on August 27, 2026.
What changed in Sigma Mount Converter MC-11 (EF to Sony E) firmware version 1.43?
Sigma Mount Converter MC-11 (EF to Sony E) firmware version 1.43 includes the following changes: ・Added support for the Sigma High Speed Zoom Line 18-35mm T2 for Canon EF mount, firmware Ver. 1.01.・Added support for the Sigma FF High Speed Prime Line 35mm T1.5 for Canon EF mount, firmware Ver. 1.01.・Improved a release time lag issue that occurs under specific settings during flash photography.
Where can I download the latest Sigma Mount Converter MC-11 (EF to Sony E) firmware?
Details and download instructions for the latest Sigma Mount Converter MC-11 (EF to Sony E) firmware (version 1.43) are on Sigma's official release page: https://www.sigma-global.com/en/support/firmware/mc-11/?mount=ef-e
How often does Sigma release firmware updates for Sigma Mount Converter MC-11 (EF to Sony E)?
We have tracked 43 firmware versions of Sigma Mount Converter MC-11 (EF to Sony E). Based on historical patterns, updates are released approximately every 614 days.
When is the next Sigma Mount Converter MC-11 (EF to Sony E) firmware update expected?
Based on this product's update history, a firmware update for Sigma Mount Converter MC-11 (EF to Sony E) is expected soon, between September 12, 2026 and December 22, 2026.
Is Sigma Mount Converter MC-11 (EF to Sony E) still receiving firmware updates?
Yes, Sigma Mount Converter MC-11 (EF to Sony E) received a firmware update within the last 3 months. The most recent version is 1.43.