Firmware update for L-Mount

Thank you for using SIGMA products.
We are pleased to announce that the download of firmware for SIGMA's L-mount is now available.
The changes in this firmware are as follows:

【Applicable product and version】

SIGMA 20mm F1.4 DG DN | Art Ver1.1 for L-Mount
SIGMA 50mm F1.4 DG DN | Art Ver1.1 for L-Mount

【Benefit of the update】

・The exposure stability has been improved.

【How to update】

For those who update the firmware in-camera
Please select the applicable product from the following page, go to the download page, click "L-Mount", read "Before updating" prior to updating the firmware and follow the update procedure
https://www.sigma-global.com/en/support/firmware/lenses/?mount=l-mount

For those who own the SIGMA USB DOCK UD-11
Connect the lens to your computer via the SIGMA USB DOCK UD-11 (sold separately), then open SIGMA Optimization Pro*. If the firmware isn't the latest version, the following message will appear: "The latest lens firmware is available." Click "Yes" to update.
^{*Before updating lens firmware via the SIGMA USB DOCK UD-11 for L-mount, please ensure that you have updated to the latest version of SIGMA Optimization Pro.}
Note:
Before updating lens firmware using the SIGMA USB DOCK UD-11, please ensure you update SIGMA Optimization Pro to the lates version.

【SIGMA Optimization Pro Download page】

https://www.sigma-global.com/en/software/sigma-optimization-pro/

For those who do not own the SIGMA USB DOCK UD-11 and are unable to update using the camera, please contact our customer support for a free update.

For further information, please contact your nearest authorized SIGMA subsidiary / distributor.(
https://www.sigma-global.com/en/world-network/
We appreciate your continued support for our company and products.