Sigma 24mm F3.5 DG DN | Contemporary (L-Mount) firmware

Firmware history

1. Version 1.4 Latest Released May 21, 2026 First seen Jul 5, 2026

   Adds focus ring customization options and T-stop display support for video recording. — summary by updatemystuff.com

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   • Specific functions can now be assigned to the focus ring during AF.
   • ​The rotation direction of the focus ring during MF can now be ​set.
   • Aperture values can now be displayed as T-stops during movie recording.
   • Only on supported cameras.
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2. Version 1.3 Released Mar 13, 2025 First seen Jul 5, 2026
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   • The exposure​ stability h​as been improved.
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3. Version 1.2 Released Jan 20, 2022 First seen Jul 5, 2026

   Adds focus ring control with linear/non-linear options and reduces shutter lag during autofocus on Leica SL2. — summary by updatemystuff.com

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   • It introduces compatibility with the “focus ring​ control” function of the camera, allowing either “linear” or “non-linear” focus movement to be selected when using MF.
   • SIGMA fp L , SIGMA fp, Panasonic Lumix S1, Lumix S1R, Lumix S1H, Lumix S5, Lumix BS1H, Leica SL2, SL2-S are supported.
   • SIGMA fp L will be supported by updating to firmware Ver.2.00 scheduled to be released in the near future, and S​IGMA fp will be supported by updating to firmware which is scheduled to be released in April.
   • For more information on linear and non-linear focusing, please refer to our frequently asked questions.
   • It improves the phenomenon of an occasional, slightly increased shutter lag during AF shooting when used in combination with the Leica SL2.
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4. Version 1.1 Released Mar 25, 2021 First seen Jul 5, 2026
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   It has improved th​e AF accuracy when​ it is used with the SIGMA fp L.

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