50mm F1.4 DG HSM | Art (SIGMA SA-mount) firmware v1.02
Sigma · Released Dec 19, 2019 · First seen by GearPulse Jul 5, 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.
GearPulse never hosts firmware files — always download from the official source.
Get it from Sigma →