Sigma 100-400mm FE - update de firmware somente através da Sigma
SIGMA 100-400mm F5-6.3 DG DN OS | Contemporary for Sony E-mount.
https://www.sonyalpharumors.com/sigma-100-400mm-fe-firmware-update-can-be-performed-by-sigma-only/
Ver.02
2021.07.15
It has improved the phenomenon whereby the lens’s optical stabilizer effect differs depending on the shutter type and drive mode used.
It has corrected the phenomenon whereby the lens firmware cannot be updated via the camera.
* Customers cannot update to lens firmware Ver.02 by themselves. After the lens has been updated to Ver.02 by SIGMA, the user can then update all future lens firmware via the camera.
15/07/2021
It has been found that the lens firmware cannot be updated from Ver.01 to Ver.02 by the end-user via the camera. Therefore, SIGMA will update the lens firmware free of charge.