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Made by Sigma · firmware
The Sigma 45mm F2.8 DG DN Contemporary is a full-frame standard prime for mirrorless L-Mount in the compact 'I' series design, featuring 10 elements in 9 groups with a metal body and a 9-blade circular aperture. It was the first lens in Sigma's 'I' series launched alongside the fp camera. The lens belongs to Sigma's Global Vision Contemporary I series.
Product released: September 19, 2019
Version 1.7, released March 18, 2026
Last checked for updates: Oct 31, 2026 17:35 UTC
・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 7 versions of Sigma 45mm F2.8 DG DN Contemporary (L-Mount) firmware, released between October 17, 2019 and March 18, 2026.
Official Sigma 45mm F2.8 DG DN Contemporary (L-Mount) product page
The Sigma 45mm F2.8 DG DN Contemporary is a full-frame standard prime for mirrorless L-Mount in the compact 'I' series design, featuring 10 elements in 9 groups with a metal body and a 9-blade circular aperture. It was the first lens in Sigma's 'I' series launched alongside the fp camera. The lens belongs to Sigma's Global Vision Contemporary I series. It was originally released on September 19, 2019.
The latest firmware version of Sigma 45mm F2.8 DG DN Contemporary (L-Mount) is 1.7. It was released on March 18, 2026.
Sigma 45mm F2.8 DG DN Contemporary (L-Mount) firmware version 1.7 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.
Details and download instructions for the latest Sigma 45mm F2.8 DG DN Contemporary (L-Mount) firmware (version 1.7) are on Sigma's official release page: https://www.sigma-global.com/en/support/firmware/c019_45_28/?mount=l-mount
We have tracked 7 firmware versions of Sigma 45mm F2.8 DG DN Contemporary (L-Mount).
Yes, Sigma 45mm F2.8 DG DN Contemporary (L-Mount) received a firmware update within the last year. The most recent version is 1.7.