copy FileModifyDate to DateTimeOriginal

[phserruys]

Hello,
I have here a series of photos from a non-standard (multispectral) camera, making RAW files that apparently are not supported by ExifTool and ExifTool GUI. 
The only thing I would like to do, however, is to copy the date and time from FileModifyDate to the Exif Metadata DateTimeOriginal.  Is there a simple command for this in exif tool direct or in the GUI ? I hope then that I can link the series of photos to a GPS track in order to geotack them. 
(it is about linking these multispectral images taken from a drone to the gps track the drone flew). 
thanks in advance for your help. 
Philippe

[Phil Harvey]

If the format is not supported, then exiftool can't write EXIF to the file.  Or maybe I don't understand the question.  Or do you want to copy this to a JPEG image produced from the RAW?  If so, this can probably be done like this in exiftool direct:

-tagsfromfile %d%f.RAW "-datetimeoriginal<filemodifydate"

Then select the JPG images.

This will only work if the RAW images have the same name as the JPG's.  (Substitute "RAW" for the actual extension of your RAW images).

- Phil

[phserruys]

Well, the RAW format is not supported.  But I have processed TIF files that have the same name as the original RAW files, to which the exif information could be written.  Would that be the same procedure ?  How to proceed ?
thanks a lot,
Philippe

[Phil Harvey]

Hi Philippe,

Same procedure.  Just select the TIF images instead.

- Phil

[phserruys]

that works,
thanks a lot
Philippe