Thank you for purchasing and using our products.

We would like to announce the update in the lens firmware of the SIGMA 20mm F1.4 DG HSM | Art Canon and
SIGMA 24-35mm F2 DG HSM | Art Canon on the SIGMA Optimization Pro.

The latest firmware update makes it fully functional with the Canon Digital Cinema Camera EOS C300 Mark II.

For those customers who own the following products, please update the firmware of the lens via
the SIGMA Optimization Pro.

Applicable products
SIGMA 20mm F1.4 DG HSM | Art– Canon mount
SIGMA 24-35mm F2 DG HSM | Art– Canon mount

Benefit of this firmware update

It becomes fully functional with the Canon Digital Cinema Camera EOS C300 Mark II.

* For SIGMA 20mm F1.4 DG HSM | Art Canon, this lens firmware update also corrects the phenomenon
that the images show some underexposure when “Evaluative Metering” or “Center-weighted Average Metering” is
selected on Canon EOS-1D X Mark II.

* Should the version of SIGMA Optimization Pro is not updated to Ver. 1.3 yet, please be sure to do it before
operating any lens firmware update.

For customers who own the SIGMA USB DOCK, and either the SIGMA 20mm F1.4 DG HSM | Art Canon or the
SIGMA 24-35mm F1.4 DG HSM | Art Canon, please update the lens firmware using SIGMA Optimization Pro

You can download the latest version of the software from the following page;

SIGMA Optimization Pro Download page
http://www.sigma-global.com/download/

For customers who do not own the SIGMA USB DOCK, the lens firmware update will be provided free of charge but you will need to provide the proper documentation as listed in the instructions on the Service & Support section of our website. Please use the following link or contact our Service Department for advice. Telephone: 01707 329 999 / Email: service@sigmauk.com

We appreciate your consistent support for our company and products.