The L-Mount 20mm F2 DG DN Contemporary from Sigma is a full-frame I series prime weighing 370g and measuring 72.4mm in length. Its 13 elements in 11 groups include one FLD, one SLD and three aspherical elements, with Nano Porous Coating to limit flare. It offers a 94.5° angle of view, a 22cm closest focus, a 62mm filter thread and a manual aperture ring.
Product released: September 29, 2022
Latest firmware version
Version 1.2, released April 23, 2026
Last checked for updates: Oct 31, 2026 17:35 UTC
What's new in version 1.2
・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.
LatestUpdate has tracked 2 versions of Sigma 20mm F2 DG DN Contemporary (L-Mount) firmware, released between March 13, 2025 and April 23, 2026.
Version 1.2 - April 23, 2026: ・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.*…
What is Sigma 20mm F2 DG DN Contemporary (L-Mount)?
The L-Mount 20mm F2 DG DN Contemporary from Sigma is a full-frame I series prime weighing 370g and measuring 72.4mm in length. Its 13 elements in 11 groups include one FLD, one SLD and three aspherical elements, with Nano Porous Coating to limit flare. It offers a 94.5° angle of view, a 22cm closest focus, a 62mm filter thread and a manual aperture ring. It was originally released on September 29, 2022.
What is the latest firmware version of Sigma 20mm F2 DG DN Contemporary (L-Mount)?
The latest firmware version of Sigma 20mm F2 DG DN Contemporary (L-Mount) is 1.2. It was released on April 23, 2026.
What changed in Sigma 20mm F2 DG DN Contemporary (L-Mount) firmware version 1.2?
Sigma 20mm F2 DG DN Contemporary (L-Mount) firmware version 1.2 includes the following changes: ・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.
Where can I download the latest Sigma 20mm F2 DG DN Contemporary (L-Mount) firmware?
Details and download instructions for the latest Sigma 20mm F2 DG DN Contemporary (L-Mount) firmware (version 1.2) are on Sigma's official release page: https://www.sigma-global.com/en/support/firmware/c022_20_2/?mount=l-mount
How often does Sigma release firmware updates for Sigma 20mm F2 DG DN Contemporary (L-Mount)?
We have tracked 2 firmware versions of Sigma 20mm F2 DG DN Contemporary (L-Mount).
Is Sigma 20mm F2 DG DN Contemporary (L-Mount) still receiving firmware updates?
Yes, Sigma 20mm F2 DG DN Contemporary (L-Mount) received a firmware update within the last year. The most recent version is 1.2.