Sigma 35mm F1.4 DG DN | Art (L-Mount)
firmware v1.3
Sigma · Released Apr 23, 2026 · First seen Jul 5, 2026
v1.3 is the latest firmware for the Sigma 35mm F1.4 DG DN / Art (L-Mount), released April 23, 2026.
In short — summary by updatemystuff.com
Adds customization options for focus ring behavior and video recording aperture display.
- Customizable focus ring functions during autofocus
- Adjustable focus ring rotation direction for manual focus
- T-stop display option for video recording aperture
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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