Sigma 24mm F1.4 DG DN | Art (L-Mount)
firmware v1.2
Sigma · Released Apr 23, 2026 · First seen Jul 5, 2026
v1.2 is the latest firmware for the Sigma 24mm F1.4 DG DN / Art (L-Mount), released April 23, 2026.
In short — summary by updatemystuff.com
Adds customizable focus ring functions, adjustable rotation direction, and T-stop display for video.
- Assign specific functions to focus ring during autofocus
- Change focus ring rotation direction during manual focus
- Display aperture as T-stop in video mode
Written from Sigma's release notes, which are printed in full below.
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What's in this update
- Added the ability to assign specific functions to the focus ring during AF.*
- Added the option to change the rotation direction of the focus ring during MF.*
- Added the option to display the aperture value as a T-stop during video recording.
- Only on supported cameras.
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