Sigma MOUNT CONVERTER MC-11 (EF-E)
firmware v1.09
Sigma · Released Aug 4, 2017 · First seen Jul 5, 2026
v1.09 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 support for the SIGMA 100-400mm F5-6.3 Contemporary lens for Canon.
- Added compatibility with SIGMA 100-400mm F5-6.3 DG OS HSM Contemporary for Canon (v1.02)
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 100-400mm F5-6.3 DG OS HSM | Contemporary for CANON (ver. 1.02). 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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Create account & watchChanged since v1.08
- It has become compatible with the SIGMA 100-400mm F5-6.3 DG OS HSM | Contemporary for CANON (ver. 1.02).
Other versions for this product
See the full firmware history for the MOUNT CONVERTER MC-11 (EF-E)