24-70mm F2.8 DG OS HSM | Art (SIGMA SA-mount) firmware v1.06
Sigma · Released Nov 21, 2019 · First seen by GearPulse Jul 5, 2026
What's in this update
The firmware will correct the phenomenon whereby the OS remains active even when the OS switch is turned off when using in combination with SIGMA MOUNT CONVERTER MC-21 SA-L.
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