100-400mm F5-6.3 DG OS HSM | Contemporary (Canon EF mount) firmware v2.05
Sigma · Released Apr 18, 2019 · First seen by GearPulse Jul 5, 2026
What's in this update
It has improved the stability of the image in the viewfinder, making it easier to confirm composition, thanks to the updated control algorithm of the Optical Stabilizer.
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