thanks but could you please briefly comment on how this works. Both FocalLength tags were exifIFD tags before I touched them. In Lightroom I changed *other* tags and saved the changed metadata back to the image. Now both of them are XMP-exif tags.
I do not mean, how LR works. I am just curious how this is handled in general (i.e. by other apps). Why are the tags classes changed?Thanxx, Mixx