Thank you for purchasing and using our products.

We would like to announce that a new firmware update is now available for SIGMA 500mm F4 DG OS HSM | Sports in SIGMA SA-mount.

For customers who own the SIGMA USB Dock UD-01 and the applicable product,please update the firmware via SIGMA Optimization Pro.


Applicable product

• SIGMA 500mm F4 DG OS HSM | Sports in SIGMA SA-mount

Benefits of the update

• It has fixed a rarely-occurring focus problem depending on the shooting distance during AF shooting.

How to update
Connect the lens to a computer via the SIGMA USB Dock UD-01 (sold separately), then open SIGMA Optimization Pro*. If the lens 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 using the SIGMA USB Dock UD-01, please ensure you update SIGMA Optimization Pro to the latest version.

Download SIGMA Optimization Pro here


For further information, please contact SIGMA Imaging Nordic by email: customerservice@sigma-imaging.se

We appreciate your continued support for our company and products.