Contemporary 150-600mm F5-6.3 DG OS HSM firmware v1.03
Sigma · Released Nov 21, 2019 · First seen by GearPulse Jul 4, 2026
What's in this update
The firmware will improve the AF performance when used in combination with the SIGMA MOUNT CONVERTER MC-21 SA-L.The firmware will optimize the operation of Mode2 in Optical Stabilizer when used in combination with the SIGMA MOUNT CONVERTER MC-21 SA-L.
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