MOUNT CONVERTER MC-11 (EF-E) firmware v1.05
Sigma · Released May 17, 2017 · First seen by GearPulse Jul 5, 2026
What's in this update
It has become compatible with the SIGMA 24-105mm F4 DG OS HSM | Art in Canon mount (firmware version 1.02).It has become compatible with the SIGMA 17-70mm F2.8-4 DC MACRO OS HSM | Contemporary in Canon mount (firmware version 1.03).It has become compatible with the SIGMA 18-200mm F3.5-6.3 DC MACRO OS HSM | Contemporary in Canon mount (firmware version 1.02).It has become compatible with the SIGMA 18-300mm F3.5-6.3 DC MACRO OS HSM | Contemporary in Canon mount (firmware version 1.01). 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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