Hi Arnd, Arnd Baecker schrieb: > On Fri, 11 May 2007, Pablo d'Angelo wrote: > > [...] > > >> The problem is that the distortion parameters change with the focus. They >> are different for short distance (as in the test shots) and the far distance >> (where the camera is usually used). > > Unfortunately, not all cameras store the focus distance in their > exif. For example for Canon EOS (20D ,300D, 350D, 5D, Digital Rebel XT, > 1D, 1Ds) see, > http://photo.net/bboard/q-and-a-fetch-msg?msg_id=00F5eG > the Makernote 0x0004: FocusDistanceUpper and FocusDistanceLower > always show 0. > > Maybe it is still hidden somewhere in the makernote ...
Yes, EXIF data is not reliable and I think, an automated lookup doesn't work in practice (at least for the focus distance). I guess, we should focus on the far distance parameters, since most images are in that category. ciao Pablo _______________________________________________ CREATE mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/create
