Gps tags are part of the standard Exif (http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/GPS.html).

GeoSetter uses exiftool to writes them to the Exif of my NEF. And Bibble (or Cnx) transfer this to the Exif of any derived jpg (and probably tiff -that I don't use-).

To me this is a very simple workflow, that keeps the geolocalization info in all my image files, source and derivatives, safe and independent from database. Of course it can be encapsulated into XMP thereafter if needed.

Francis

That's why EVERY Raw converter HAS to support it and include it in the converted files (actually, ALL the Exif information has to be included). Herman was right to contact DxO about this. It's a BUG. I posted the problem in the RawTherapee Bug forum too. Let's see who'll react first

Just to iterate once more on this before we really go off-topic: it would be a bug if the geo information was available in the EXIF fields of the raw image and the raw processor dumped or changed this information. This is not the case. The geo information is (in my current workflow that is....) only available in an xmp sidecar file, not in the EXIF fields. The raw processor does not merge the sidecar info into the output JPG / TIF / DNG files. Just as (for example) Canon's DPP does not merge this info into the converted file.
So (in my view) this is not a bug.

If the GPS is in an XMP sidecar to the RAW file, and the RAW converter isn't placing the GPS in the EXIF of the converted file, I don't regard that as a bug. I expect a converter to preserve EXIF GPS. If the converter is XMP-capable, I would expect it to preserve the XMP sidecar. But I would not expect it to convert XMP sidecar to EXIF.

GPS is no different to other metadata. There are multiple standards. Not all programs read / convert them all. You need to understand your software's capabilities and how to work with them.

F_P

I was not aware that some camera bodies would write GPS data outside of the raw file (comes from my Nikon monoculture, these guys are "everything_in_the_NEF" fanatics).

So I suppose they also write the rest of Exif to the sidecar? interesting...

Francis

They don't. A camera body does not generate an xmp sidecar, everything the body registers is included in the EXIF fields in the raw frame.
The "problem" is created when one wants to add GPS data to pictures where the camera has no build-in GPS receiver. In my workflow, with the software I use, the GPS data (coming from a separate GPS device, not connected to the camera body), is written in a sidecar file.

Thank you for the explanation. I was just wondering if they were written in the thm files that are produced by some bodies (they mostly contain a jpg which could provide a container for gps data).

Some Nikon can be connected directly to a gps receiver and the data gets written into the Exif inside the NEF. My D80 has not that possibility, which is why I use GeoSetter to transfer from my Vista C into the Exif of the NEF. I simply assumed this is a general procedure...

Francis