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 Visionlenses in L-Mount listed below.


Applicable product

• SIGMA 24mm F3.5 DG DN | Contemporary in L-Mount
• SIGMA 35mm F2 DG DN | Contemporary in L-Mount
• SIGMA 65mm F2 DG DN | Contemporary in L-Mount
• SIGMA 105mm F2.8 DG DN Macro | Art in L-Mount

Benefits of the update

• It has improved the AF accuracy when it is used with the SIGMA fp L.

Applicable product

• SIGMA 45mm F2.8 DG DN | Contemporary in L-Mount

Benefits of the update

• It has improved focusing accuracy in single AF (AF-S).

Applicable product

• SIGMA 50mm 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.
• It has optimized the value of the minimum focusing distance displayed on the camera.

Applicable product

• SIGMA 100-400mm F5-6.3 DG DN OS | Contemporary in L-Mount

Benefits of the update

• It has improved the AF accuracy when it is used with the SIGMA fp L.
• It has optimized th Optical Stabilizer's Mode 2 with the camera setting.
• It has optimized the open F value display.

How to update
If you are updating the firmware in-camera, please see firmware updates here. 

※For customers who own 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 youupdate 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.