Sigma 30mm F1.4 DC DN | Contemporary (Sony E-mount)
firmware v04
Sigma · Released Apr 7, 2022 · First seen Jul 5, 2026
v04 is not the latest firmware for the Sigma 30mm F1.4 DC DN / Contemporary (Sony E-mount): the current version is v07 (August 27, 2026). Go to v07
In short — summary by updatemystuff.com
Focus position is now retained when powering on or resuming from power save.
- Focus position restored when power switch is turned ON
- Focus position restored when camera exits power save mode
Written from Sigma's release notes, which are printed in full below.
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What's in this update
The specification has been changed so that the focus position of the lens when the ON/OFF (power) switch is turned “ON”, or when the camera is restored from power save, is set to the same shooting distance when the ON/OFF (power) switch was turned “OFF” or when power save was activated.
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