Sigma has released the latest version of its Photo Pro RAW conversion software for its DP and SD camera series. The latest version is based around new image processing algorithms and features additional noise reduction at ISO 400 and above, amongst other enhancements. It is available for immediate download via Sigma's website. In addition, as previously announced, firmware v1.04 for the DP2 compact that adds the non-hardware aspects of the DP2s' faster AF is now available for download.

Click here to download the Photo Pro 4.0 for Sigma DP2s

Click here to download the Photo Pro 4.0 for Sigma DP2

Click here to download the Photo Pro 4.0 for Sigma DP1

Click here to download the Photo Pro 4.0 for Sigma SD series

Click here for more information and to download the firmware v1.04 for DP2

Here we compare the exisitng version of Sigma Photo Pro with the latest version. In the examples below we have set the new Chroma Noise Reduction feature to its maximum, +2 setting.

Sigma Photo Pro v3.5
Sigma Photo Pro v4.0

A new Noise Reduction box appears in the Sigma Photo Pro 4 interface allowing users to apply five levels of Chroma and Luminance noise to RAW images.