Sigma 65mm F2 DG DN | Contemporary (L-Mount) firmware `v1.2`

Sigma · Released Jan 20, 2022 · First seen Jul 5, 2026

v1.2 is not the latest firmware for the Sigma 65mm F2 DG DN / Contemporary (L-Mount): the current version is v1.4 (January 22, 2026). Go to v1.4

In short — summary by updatemystuff.com

Adds focus ring control compatibility for manual focus and improves autofocus shutter lag with Leica SL2.

Focus ring control function now selectable for linear or non-linear manual focus movement
Reduces occasional shutter lag during autofocus with Leica SL2

Written from Sigma's release notes, which are printed in full below.

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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 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.
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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