There is a feature request about adding the aspect ratio, see http://developer.berlios.de/feature/?func=detailfeature&feature_id=5134&group_id=9034
I wonder whether this is not only a nice feature but actually necessary. According to <http://svn.berlios.de/wsvn/lensfun/trunk/libs/lensfun/mod-color.cpp>, LensFun uses two different coordinate systems, but only for vignetting, it uses the *diagonal* as the reference length. At the same time, only the length of the diagonal is known if you only know the cropfactor (and not the aspect ratio). As long as all sensors share the very same aspect ratio, this is not a problem. But in general, either the aspect ratio should be stored for every <camera>, or Lensfun should use the diagonal as the reference system for all lens errors. The latter is hardly feasible, given that all current data needs to be transformed. (It's mathematically possible but not lossless.) ------------------------------------------------------------------------------ Put Bad Developers to Shame Dominate Development with Jenkins Continuous Integration Continuously Automate Build, Test & Deployment Start a new project now. Try Jenkins in the cloud. http://p.sf.net/sfu/13600_Cloudbees _______________________________________________ Lensfun-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/lensfun-users
