The Sigma 28-70mm F2.8 DG DN Contemporary is a full-frame standard zoom for mirrorless L-Mount featuring 16 elements in 12 groups and a constant F2.8 aperture in the lightest and most compact F2.8 standard zoom available. It uses a stepping motor for quiet autofocus. The lens belongs to Sigma's Global Vision Contemporary line.
Product released: March 25, 2021
Latest firmware version
Version 1.3, released October 23, 2025
Last checked for updates: Oct 31, 2026 17:35 UTC
What's new in version 1.3
・We have fixed an issue where autofocus would stop working properly on some cameras.
LatestUpdate has tracked 3 versions of Sigma 28-70mm F2.8 DG DN Contemporary (L-Mount) firmware, released between January 20, 2022 and October 23, 2025.
Version 1.2 - April 17, 2025: ・Fixed a rare issue where the image around the edges of the video would shake during video recording.・It introduces compatibility with the “focus ring control”…
Version 1.1 - January 20, 2022: ・Fixed a rare issue where the image around the edges of the video would shake during video recording.・It introduces compatibility with the “focus ring control”…
What is Sigma 28-70mm F2.8 DG DN Contemporary (L-Mount)?
The Sigma 28-70mm F2.8 DG DN Contemporary is a full-frame standard zoom for mirrorless L-Mount featuring 16 elements in 12 groups and a constant F2.8 aperture in the lightest and most compact F2.8 standard zoom available. It uses a stepping motor for quiet autofocus. The lens belongs to Sigma's Global Vision Contemporary line. It was originally released on March 25, 2021.
What is the latest firmware version of Sigma 28-70mm F2.8 DG DN Contemporary (L-Mount)?
The latest firmware version of Sigma 28-70mm F2.8 DG DN Contemporary (L-Mount) is 1.3. It was released on October 23, 2025.
What changed in Sigma 28-70mm F2.8 DG DN Contemporary (L-Mount) firmware version 1.3?
Sigma 28-70mm F2.8 DG DN Contemporary (L-Mount) firmware version 1.3 includes the following changes: ・We have fixed an issue where autofocus would stop working properly on some cameras.
Where can I download the latest Sigma 28-70mm F2.8 DG DN Contemporary (L-Mount) firmware?
Details and download instructions for the latest Sigma 28-70mm F2.8 DG DN Contemporary (L-Mount) firmware (version 1.3) are on Sigma's official release page: https://www.sigma-global.com/en/support/firmware/c021_28_70_28/?mount=l-mount
How often does Sigma release firmware updates for Sigma 28-70mm F2.8 DG DN Contemporary (L-Mount)?
We have tracked 3 firmware versions of Sigma 28-70mm F2.8 DG DN Contemporary (L-Mount).