Adobe has issued the second prerelease version of the Lens Profile Creator utility for immediate download from its Adobe Labs site. The upgraded version fixes 'several reported issues in the initial build.' The utility enables users to create custom lens profiles for Photoshop CS5, ACR 6.1 and Lightroom 3.
Click for more information and to download Lens Profile Creator
Lens Profile Creator characterizes three common types of lens aberrations, namely the geometric distortion, the lateral chromatic aberration and the vignette.
The general process of creating a custom lens profile for your lens involves capturing a set of checkerboard images using your specific camera and lens, converting the set of raw format images into DNG format, and importing the DNG files to generate the custom lens profile.
You can also submit the lens profiles to share with the rest of the user community.
Check out the Labs page for more info, and see the
Lens Profile Creator user forum to discuss the tool & profiles.