135mm F1.8 DG HSM | Art (SIGMA SA-mount) firmware v1.01
Sigma · Released Apr 18, 2019 · First seen by GearPulse Jul 5, 2026
What's in this update
It has corrected the phenomenon whereby it may occasionally show overexposure when narrowing down the aperture from F3.5 while shooting.It has improved the AF speed and quality when the lens is used with the SIGMA MOUNT CONVERTER MC-21 SA-L.
GearPulse never hosts firmware files — always download from the official source.
Get it from Sigma →