Firmware update for SIGMA’s interchangeable lenses for SIGMA

Thank you for purchasing and using our products.
We would like to announce that a new firmware update for SIGMA’s interchangeable lenses for SIGMA listed below is now available.

This firmware corrects the phenomenon whereby it may occasionally show overexposure when narrowing down to a particular F-number while shooting, and improves the stability of the image in the viewfinder, making it easier to confirm compositions. Furthermore, it improves the AF speed and quality when the lenses listed below are used with the SIGMA MOUNT CONVERTER MC-21 SA-L.

For customers who own the SIGMA USB DOCK and applicable products 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 SIGMA

[Benefits 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.
・It has improved the AF speed and quality when the lens is used with the SIGMA MOUNT CONVERTER MC-21 SA-L.

[Applicable product]
・SIGMA 135mm F1.8 DG HSM | Art for SIGMA

[Benefits of the update]
・It has corrected the phenomenon whereby it may occasionally show overexposure when narrowing down the aperture from F3.5 while shooting.
・It has improved the AF speed and quality when the lens is used with the SIGMA MOUNT CONVERTER MC-21 SA-L.

[Applicable products]
・SIGMA 12-24mm F4 DG HSM | Art for SIGMA
・SIGMA 24-70mm F2.8 DG OS HSM | Art for SIGMA
・SIGMA 14mm F1.8 DG HSM | Art for SIGMA
・SIGMA 85mm F1.4 DG HSM | Art for SIGMA
・SIGMA 500mm F4 DG OS HSM | Sports for SIGMA

[Benefit of the update]
・It has improved the AF speed and quality when the lens is used with the SIGMA MOUNT CONVERTER MC-21 SA-L.

【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.