SIGMA 120-300mm F2.8 DG OS HSM F/CANON Firmware Update

Thank you for purchasing and using our products.

We are pleased to inform you the SIGMA 120-300mm F2.8 DG OS HSM F/CANON Firmware Update is now available. **Please update to SIGMA Optimization Pro Ver1.2 before operating firmware update of SIGMA 120-300mm F2.8 DG OS HSM S013 F/CANON.

This firmware update allows you to use the SIGMA USB DOCK with the SIGMA 120-300mm F2.8 DG OS HSM F/CANON. If you have the products mentioned below, please start up SIGMA Optimization Pro and then operate lens firmware update.

Applicable products

  • SIGMA 120-300mm F2.8 DG OS HSM S013 F/CANON

Benefits of this firmware update

  • Improved Auto Focus speed for "Standard" and "Speed-priority" modes.
  • Improved focus accuracy when mounted on Canon EOS-1D Mark III or Canon EOS-1D Mark IV.

**Please update to SIGMA Optimization Pro Ver1.2 before operating firmware update of SIGMA 120-300mm F2.8 DG OS HSM S013 F/CANON.

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