MOUNT CONVERTER MC-11 (EF-E) firmware v1.35
Sigma · Released Oct 22, 2020 · First seen by GearPulse Jul 5, 2026
What's in this update
It makes the converter compatible with the SIGMA 18-200mm F3.5-6.3 DC MACRO OS HSM | Contemporary in Canon EF mount, that has the latest firmware Ver.2.03.It makes the converter compatible with the SIGMA 70-200mm F2.8 DG OS HSM | Sports in Canon EF mount, that has the latest firmware Ver.1.02.It makes the converter compatible with the SIGMA 100-400mm F5-6.3 DG OS HSM | Contemporary in Canon EF mount, that has the latest firmware Ver.2.07.It makes the converter compatible with the SIGMA 150-600mm F5-6.3 DG OS HSM | Sports in Canon EF mount, that has the latest firmware Ver.2.02.It makes the converter compatible with the SIGMA 20mm F1.4 DG HSM | Art in Canon EF mount, that has the latest firmware Ver.2.01. ※Please be sure to update SIGMA Optimization Pro to Ver.1.6.0 or later when updating the MC-11 firmware. SIGMA Optimization Pro
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