Thank you for purchasing and using our products.

We would like to announce that a new firmware update is now available for the SIGMA Global Vision lenses in L-Mount listed below.

Applicable Product
• SIGMA 35mm F1.4 DG HSM | Art in L-Mount

Benefits of the Update
• It has improved the AF accuracy when it is used with the SIGMA fp L.
• It has improved aperture operation when shooting movies with the Panasonic LUMIX S1H.

Applicable Product
• SIGMA 20mm F1.4 DG HSM | Art in L-Mount
• SIGMA 24mm F1.4 DG HSM | Art in L-Mount

Benefits of the Update
• It has improved aperture operation when shooting movies with the Panasonic LUMIX S1H.
• It has optimized the value of the minimum focusing distance displayed on the camera.

Applicable Product
• SIGMA 85mm F1.4 DG HSM | Art in L-Mount
• SIGMA 105mm F1.4 DG HSM | Art in L-Mount

Benefits of the Update
• It has improved aperture operation when shooting movies with the Panasonic LUMIX S1H.

Applicable Product
• SIGMA 70mm F2.8 DG Macro HSM | Art in L-Mount

Benefits of the Update
• It has fixed the phenomenon that the AF operation becomes unstable on rare occasions when the AF operation is repeated alternately from short distance to infinity / from infinity to short distance.


How to Update
If you update the firmware in-camera, please follow this link.

If you have the SIGMA USB Dock UD-11: Connect the lens to a computer via the SIGMA USB Dock UD-11 (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-11, please ensure you update SIGMA Optimization Proto with the latest version:

SIGMA Photo Pro 6.8.0 is available to download 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.