When saving a file that was originally a JPG to a DNG file, the camera maker notes are written incorrectly and have become corrupted.
Together with Phil Harvey (author of exiftool) I analysed the issue and we found that the makernotes are copied from an area in the original file that is off by 12 bytes; the maker note data is prefixed with 12 bytes (from other metadata tags) and the final 12 bytes are missing. This is problematic as my workflow uses information from the makernotesā¦
The problem has been around for a while and is still present in the latest verion of camera raw (14.3).
If you need, I can provide example files.
Hope you can fix this soon,
Hayo Baan