Thank you for purchasing and using our products.
We would like to announce that a new firmware update for the SIGMA 100-400mm F5-6.3DG OS HSM | Contemporary for Canon is now available.
This firmware improves the AF speed in certain combinations with some cameras.
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.1.4.1 or later for Windows, and Ver.1.4.0 or later for Macintosh.
【SIGMA Optimization Pro Download page】
・SIGMA 100-400mm F5-6.3 DG OS HSM | Contemporary for Canon
【Benefit of the update】
・It has improved the AF speed in certain combinations with some cameras.
For further information, please contact your nearest authorized SIGMA subsidiary / distributor.
We appreciate your continued support for our company and products.