Thank you very much for purchasing and using Sigma products. Sigma has found that the current firmware of our Nikon mount interchangeable lenses may not work properly with the Nikon D5300’s OS and Live View Auto Focus functions.

For those customers who own Sigma lenses in Nikon mount, Gentec International will provide a free firmware update service. Please note that all products Sigma dispatches from the factory going forward will have the latest firmware and full compatibility.

Nikon D5300 Compatibility

Without the latest firmware, the OS and Live View Auto Focus functions do not work properly when it is used with the Nikon D5300 only.

Concerned Sigma Products

Nikon mount interchangeable lenses that incorporate an internal motor.
* Firmware upgrade cannot be applied to the lenses that do not have an internal focusing motor.
* For some discontinued products, we may not be able to offer the firmware update due to the discontinuation of related repair parts. Please contact Gentec International for the further details.

Gentec International Support – Firmware Update

For those customers in need of the latest firmware, Gentec will provide free firmware update from November 22nd onward.
For discontinued products, please contact Gentec International service department further details.
Phone: 905 513-773 or e-mail: service@gentec-intl.com
We are currently in the process of updating all of our inventory to ensure our shipments are fully compatible with the D5300 going forward.
All lenses that are updated for use with the Nikon D5300 will have the following sticker affixed onto the product box:

D5300 Compatibility Sticker

 



Firmware update via Sigma USBDOCK

 

For lenses that are compatible with the SIGMA USB DOCK, it is possible to update them via SIGMA Optimization Pro. (Note only new Art, Sport and Contemporary lenses are USBDOCK compatible) The updated firmware for the USBDOCK is currently available online for download. Current owners of new Art, Sports or Contemporary lenses who have USBDOCK’s can update their lenses at any time.
For detailed information on the SIGMA USB DOCK, please find it from the below link;
https://www.gentec-intl.com/?s=usbdock
For the detailed information and download of the SIGMA Optimization Pro software, please find it from the below link;
http://www.sigma-global.com/download/en/index.html