Dear SIGMA USB DOCK Users,

Thank you for purchasing and using our products.

We would like to announce that we have updated the firmware of the SIGMA Optimization Pro, the dedicated software for the SIGMA USB DOCK.

The latest firmware enables our Nikon fitting interchangeable lenses fully functional with the Nikon D5300 camera. For those customers who own following products, please update the firmware of the lens via the SIGMA Optimization Pro.

・35mm F1.4 DG HSM A012 NIKON
・17-70mm F2.8-4 DC MACRO OS HSM C013 NIKON
・30mm F1.4 DC HSM A013 NIKON
・18-35mm F1.8 DC HSM A013 NIKON
・120-300mm F2.8 DG OS HSM S013 NIKON

Should the version of SIGMA Optimization Pro is not updated to Ver. 1.1 yet, please be sure to do it before operating any lens firmware update.
You can download the latest version of the software from the following page;
http://www.sigma-global.com/download/

We appreciate your consistent support for our company and products.