Hello! A bit late but I'll try to answer.
You're absolutely right that cropfactor will affect how coordinates will be normalized to the [0-1] range. This is not my choice, I had to follow this convention if I want to be compatible with PTLens and Hugin lens models. Also, this scheme allows to define just one mathematical model for a lens, and use it on different cameras with different crop factors. For example, you may compute the coefficients for some lens using a 1.0 crop-factor camera, and then you may use same model for shots made with 1.5 crop-factor cameras. The reverse is obviously not the right thing to do (e.g. creating a model on a 1.5 crop-factor camera and then correcting 1.0 crop-factor shots will... ahem, well, most likely not work). Now when you model your lens, you must use shots made with the native crop-factor, which covers the whole sensor (I suppose this is 4:3). Then for smaller crops you must compute the ratio of the smallest of the two dimensions and divide the sensor crop factor by it. Then coordinate normalization will work okay, provided that the cropped image is centered on the sensor. Then you must create several camera definitions, like "Camera A (4:3 mode)", "Camera A (16:9 mode)" and so on, with the same EXIF identifier. The application is expected to automatically select any of these camera definitions, but allow you to select at least amongst cameras with identic EXIF IDs (or, even better, be able to give you flexible choice between all cameras in the database). If this is not the case, I suggest you to contact rawstudio authors. You may try how UFRaw reacts to this situation. ------------------------------------------------------------------------------ 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
