MOUNT CONVERTER MC-11 (EF-E) firmware v1.22
Sigma · Released Feb 21, 2019 · First seen by GearPulse Jul 5, 2026
What's in this update
It has become compatible with the 17-70mm F2.8-4 DC MACRO OS HSM | Contemporary for CANON EF mount, that has the latest firmware Ver.2.01.It has become compatible with the SIGMA 18-200mm F3.5-6.3 DC MACRO OS HSM | Contemporary for CANON EF mount, that has the latest firmware Ver.2.01.It has become compatible with the SIGMA 18-35mm F1.8 DC HSM | Art for CANON EF mount, that has the latest firmware Ver.2.02.It has become compatible with the SIGMA 50-100mm F1.8 DC HSM | Art for CANON EF mount, that has the latest firmware Ver.2.02.It has become compatible with the SIGMA 100-400mm F5-6.3 DG OS HSM | Contemporary for CANON EF mount, that has the latest firmware Ver.2.04. Note: Before updating the SIGMA MOUNT CONVERTER MC-11 firmware, please ensure SIGMA Optimization Pro has been updated to ver. 1.5.0 or later for Windows, and ver. 1.5.0 or later for Macintosh.
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