100-400mm F5-6.3 DG OS HSM | Contemporary (SIGMA SA-mount) firmware v1.02
Sigma · Released Sep 8, 2017 · First seen by GearPulse Jul 5, 2026
What's in this update
It has corrected the phenomenon that the Manual Override (MO) function will be disabled after adjusting the settings of focus mode switch on SIGMA Optimization Pro (Macintosh ver.).
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