24-70mm F2.8 DG OS HSM | Art (Canon EF mount) firmware v2.04
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 EF-L.
GearPulse never hosts firmware files — always download from the official source.
Get it from Sigma →