Could you expand on PTools. What, where etc. Perhaps a web address.
Here's a good tutorial on how to use PanoTools to fix various lens problems:
http://www.caldwellphotographic.com/ TutorialsDistortionAndColorFringing.html
Here's a tool for Macs that puts a friendlier interface on the same operations. Panotools is used for the calculations but this interface makes the process much simpler to perform:
http://www.kekus.com/plugin/index.html
There are many good tutorials floating around the web on strategies for using Panotools for all sorts of optical tasks. Look at other pages and links on the sites above and you'll soon be overwhelmed with what all you can accomplish with this powerful software.
Bob Smith
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