Thank you for purchasing and using our products.
We would like to announce that a new firmware update for the SIGMA 100-400mm F5-6.3 DG OS HSM | Contemporary for NIKON F mount is now available.

This firmware update improves the stability of the image in the viewfinder, making it easier to confirm compositions.

For customers who own the SIGMA USB DOCK and applicable product listed below, please update the firmware via SIGMA Optimization Pro※.

※ Before updating the firmware using the SIGMA USB DOCK, please ensure to update SIGMA Optimization Pro to Ver. 1.5.0 or later.

【Applicable product】
・SIGMA 100-400mm F5-6.3 DG OS HSM | Contemporary for NIKON F mount

【Benefit of the update】
・It has improved the stability of the image in the viewfinder, making it easier to confirm composition, thanks to the updated control algorithm of the Optical Stabilizer.

【SIGMA Optimization Pro Download page】
https://www.sigma-global.com/en/download/lenses/sigma-optimization-pro/

For further information, please contact your nearest authorized SIGMA subsidiary / distributor.
https://www.sigma-global.com/en/about/world-network/

We appreciate your continued support for our company and products.