Sigma MOUNT CONVERTER MC-11 (EF-E)
firmware v1.14
Sigma · Released Jun 12, 2018 · First seen Jul 5, 2026
v1.14 is not the latest firmware for the Sigma MOUNT CONVERTER MC-11 (EF-E): the current version is v1.43 (August 27, 2026). Go to v1.43
In short — summary by updatemystuff.com
Adds compatibility with 105mm F1.4 DG HSM Art and SIGMA Canon lenses with firmware 2.01.
- 105mm F1.4 DG HSM Art for Canon
- SIGMA Canon lenses with firmware version 2.01
Written from Sigma's release notes, which are printed in full below.
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What's in this update
It has become compatible with the SIGMA 105mm F1.4 DG HSM｜Art for Canon.
It has become compatible with the SIGMA interchangeable lenses for Canon that have the latest firmware Ver.2.01.
Note: Before updating the MC-11 firmware, please ensure SIGMA Optimization Pro has been updated to ver. 1.4.1 or later for Windows, and ver. 1.4.0 or later for Macintosh.
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See the full firmware history for the MOUNT CONVERTER MC-11 (EF-E)