https://b2b.sigma-imaging.fi/blog/item/firmware-update-sony-e-mount-lenses-september-28-45-dg-dn-art
Firmware update for Sony E-Mount lenses [28-45mm F1.8 DG DN | Art] - Sigma
We are pleased to announce that the download of firmware for SIGMA's E-mount is now available for 28-45 F1.8 DG DN Art
sony e mount lenses