Made for L-Mount mirrorless bodies, the Sigma 17mm F4 DG DN Contemporary is a full-frame ultra-wide prime with a 103.7° angle of view and 9 elements in 8 groups, including two SLD and three aspherical elements. It measures 64.0mm by 48.8mm, weighs 225g, takes 55mm filters and focuses down to 12cm, with a stepping motor driving autofocus.
Product released: October 21, 2021
Latest firmware version
Version 1.2, released May 21, 2026
Last checked for updates: Oct 31, 2026 17:35 UTC
What's new in version 1.2
・Specific functions can now be 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 as T-stops during movie recording. *Only on supported cameras.
LatestUpdate has tracked 2 versions of Sigma 17mm F4 DG DN Contemporary (L-Mount) firmware, released between January 23, 2025 and May 21, 2026.
Version 1.2 - May 21, 2026: ・Specific functions can now be assigned to the focus ring during AF. ・The rotation direction of the focus ring during MF can now be set. ・Aperture values can n…
What is Sigma 17mm F4 DG DN Contemporary (L-Mount)?
Made for L-Mount mirrorless bodies, the Sigma 17mm F4 DG DN Contemporary is a full-frame ultra-wide prime with a 103.7° angle of view and 9 elements in 8 groups, including two SLD and three aspherical elements. It measures 64.0mm by 48.8mm, weighs 225g, takes 55mm filters and focuses down to 12cm, with a stepping motor driving autofocus. It was originally released on October 21, 2021.
What is the latest firmware version of Sigma 17mm F4 DG DN Contemporary (L-Mount)?
The latest firmware version of Sigma 17mm F4 DG DN Contemporary (L-Mount) is 1.2. It was released on May 21, 2026.
What changed in Sigma 17mm F4 DG DN Contemporary (L-Mount) firmware version 1.2?
Sigma 17mm F4 DG DN Contemporary (L-Mount) firmware version 1.2 includes the following changes: ・Specific functions can now be 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 as T-stops during movie recording. *Only on supported cameras.
Where can I download the latest Sigma 17mm F4 DG DN Contemporary (L-Mount) firmware?
Details and download instructions for the latest Sigma 17mm F4 DG DN Contemporary (L-Mount) firmware (version 1.2) are on Sigma's official release page: https://www.sigma-global.com/en/support/firmware/c023_17_4/?mount=l-mount
How often does Sigma release firmware updates for Sigma 17mm F4 DG DN Contemporary (L-Mount)?
We have tracked 2 firmware versions of Sigma 17mm F4 DG DN Contemporary (L-Mount).
Is Sigma 17mm F4 DG DN Contemporary (L-Mount) still receiving firmware updates?
Yes, Sigma 17mm F4 DG DN Contemporary (L-Mount) received a firmware update within the last year. The most recent version is 1.2.