Sigma 100-400mm F5-6.3 DG DN OS | Contemporary (Sony E-mount serial number : 56398400 or smaller)
firmware v03
Sigma · Released Jan 26, 2023 · First seen Jul 5, 2026
v03 is not the latest firmware for the Sigma 100-400mm F5-6.3 DG DN OS / Contemporary (Sony E-mount serial number : 56398400 or smaller): the current version is v04 (June 20, 2024). Go to v04
What's in this update
AF assist function during video recording is now supported.
- Only SONY camera models with AF assist function are supported.
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