Sigma MOUNT CONVERTER MC-11 (EF-E)
firmware v1.32
Sigma · Released Jul 21, 2020 · First seen Jul 5, 2026
v1.32 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
Now compatible with three Canon EF lenses when running their latest firmware.
- Supports 18-35mm F1.8 Art (firmware 2.03)
- Supports 24-105mm F4 Art (firmware 2.01)
- Supports 120-300mm F2.8 Sports (firmware 2.02)
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 18-35mm F1.8 DC HSM | Art for Canon EF mount, that has the latest firmware Ver.2.03.It has become compatible with the SIGMA 24-105mm F4 DG OS HSM | Art for Canon EF mount, that has the latest firmware Ver.2.01.It has become compatible with the SIGMA 120-300mm F2.8 DG OS HSM | Sports for Canon EF mount, that has the latest firmware Ver.2.02.
Before updating the SIGMA MOUNT CONVERTER MC-11 firmware, please ensure SIGMA Optimization Pro has been updated to ver. 1.5.0 or later.
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See the full firmware history for the MOUNT CONVERTER MC-11 (EF-E)