Sigma 500mm F4 DG OS HSM | Sports (SIGMA SA-mount)
firmware v1.03
Sigma · Released Mar 25, 2021 · First seen Jul 5, 2026
v1.03 is the latest firmware for the Sigma 500mm F4 DG OS HSM / Sports (SIGMA SA-mount), released March 25, 2021.
What's in this update
It has fixed a rarely-occurring focus problem depending on the shooting distance during AF shooting.
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See the full firmware history for the 500mm F4 DG OS HSM | Sports (SIGMA SA-mount)