Lens calibration for Lensfun

http://vimeo.com/51999287
The video above is the best tutorial in how to find the parameters to calibrate a lens using panotools that gimp, ufraw and hugin uses.

For gimp 2.8.14 , you need to install the plugin gimp lensfun at http://seebk.github.io/GIMP-Lensfun/

The problem with Gimp is that I still don't know how to do conversions for a large number of files. It can only do corrections for one file in jpeg, not raw. Only ufraw can do raw but the latest ufraw, the standalone version, cannot work with large raw files that my camera can handle, greater than 16 Megapixels.

Lightroom is still the best and most reliable but its adjustment is limited and it is expensive to buy legally, whereas Gimp and Ufraw are free.

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