Sigma 120-300 f/2.8 DG OS HSM for Canon Firmware Update

Sigma has released a new firmware update for the Canon version of its Sigma 120-300 f/2.8 DG OS HSM telephoto zoom lens. The new firmware update is available via the Sigma Pro Optimization software.

The new SIGMA 120-300mm f/2.8 DG OS HSM F/CANON firmware update improves the AF speed and focus accuracy of the lens. Details as follows.

The Sigma 120-300mm f/2.8 DG OS HSM is a telephoto zoom lens featuring a fast, constant f/2.8 maximum aperture. This lens is also compatible with the Sigma USB Dock, which allows you to use the Sigma Pro Optimization software to fine-tune certain lens settings to your own shooting needs.

See the Test Results | Review for the Sigma 120-300 f/2.8 DG OS HSM lens.

Sigma 120-300 f/2.8 DG OS HSM for Canon Firmware Update

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Benefits of this firmware update:

  • It has improved the Auto Focus speed of “Standard” and “Speed-priority” modes.
  • It has improved the focus accuracy when it is 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 f/2.8 DG OS HSM S013 F/CANON.

Download the Sigma Optimization Software here.