At the basis the Exif of my NEF files are complete.
When processing this file through HF and save the result in JPEG, only a summary is recorded and saved.
That's why I asked the question, because some pics were refused on a competition photo-website because of "incomplete exif".
The best is you have a look by yourself, here are the links to the 2 files:
and the resulting image after HF:
I'm looking forward to read your reply as soon as possible.
Thanks a lot for your cooperation, Dan !
PS: The links will be ready in 30 minutes only, counting from this time, just the necessary delay to upload them on my website.