Thank you very much for purchasing and using Sigma products. We have found that the current firmware of our Nikon mount interchangeable lenses may not work properly with the Nikon Df camera's OS and Auto Focus functions.
This is similar to the phenomena described in "Information Regarding the Nikon D5300 Cameras" that we have announced on November 19th.
However, for the Nikon Df cameras, it includes those lenses that do not have an internal AF motor, and the following products will require a firmware update.
For those customers who use Sigma lenses in Nikon mount with the Nikon Df camera, we are going to provide a free firmware update. Please note that all the products we dispatch from the factory will have the latest firmware.
Nikon Df Compatibility
Without the latest firmware, the OS and Auto Focus functions do not work properly when it is used with the Nikon Df cameras.
Concerned Products for Nikon Df firmware update
All Nikon mount interchangeable lenses not yet updated for the Nikon D5300 camera.
For the Nikon Df only it includes the following lenses that do not have an internal AF motor:
1. 8mm F3.5 EX DG CIRCULAR FISHEYE
2. 15mm F2.8 EX DG DIAGONAL FISHEYE
3. 20mm F1.8 EX DG ASPHERICAL RF
4. 24mm F1.8 EX DG ASPHERICAL MACRO
5. 28mm F1.8 EX DG ASPHERICAL MACRO
6. MACRO 50mm F2.8 EX DG
7. MACRO 70mm F2.8 EX DG
* 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 further details.
Gentec International Support – Firmware Update
For those customers in need of the latest firmware, Gentec International will provide a free firmware update from December 6th. Also, for lenses that are compatible with the SIGMA USB DOCK, it is possible to update the firmware via SIGMA Optimization Pro, please see further information noted below.
We are currently in the process of updating all of our inventory to ensure our shipments are fully compatible with the Nikon Df and D5300 going forward. All lenses that are updated for use with the Nikon Df and D5300 will have one of the following stickers affixed onto the product box:
Nikon D5300 Compatibility Stickers:
Note: This is for DC lenses incorporating an internal motor.
Nikon Df and D5300 Compatibility Stickers:
Note: This is for DG lenses incorporating an internal motor.
Nikon Df Compatibility Stickers:
Note: This is for the DG lenses above NOT incorporating an internal motor.
The following lenses will be updated for use only with the Nikon Df model and will have the following sticker affixed onto the product box:
*For the Nikon Df model only includes the following lenses that do not have an internal AF motor;
8. 8mm F3.5 EX DG CIRCULAR FISHEYE
9. 15mm F2.8 EX DG DIAGONAL FISHEYE
10. 20mm F1.8 EX DG ASPHERICAL RF
11. 24mm F1.8 EX DG ASPHERICAL MACRO
12. 28mm F1.8 EX DG ASPHERICAL MACRO
13. MACRO 50mm F2.8 EX DG
14. MACRO 70mm F2.8 EX DG
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:
http://www.sigmacanada.ca/product/sigma-usb-dock--usbdocks/
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/
