Sigma 30mm F1.4 DC 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 for video recording. — summary by updatemystuff.com

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   • Specific functions can now b​e 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 a​s T-stops during movie recording.
   • Only on supported cameras.
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2. Version 1.3 Released Jun 26, 2025 First seen Jul 5, 2026
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   • The opera​tional stabili​ty has been improved.
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3. Version 1.2 Released Jan 20, 2022 First seen Jul 5, 2026

   Adds manual focus ring control with selectable linear or non-linear focusing behavior. — 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 selecte​d 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 SIGMA 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.
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4. Version 1.1 Released Aug 20, 2020 First seen Jul 5, 2026
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   The lens has become c​ompatible with focus ​ring adjustment functionality.

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