Phil: Copying tags from Sidecar xmp files to raw files

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[Originally posted by louiscar on 2008-11-17 20:44:37-08]

I hadn't realised that and didn't look till now. I see what you mean, in fact there are two fields named: FocalLengthIn35mmFormat. At least they have the right data albeit one shows 75mm and the other shows just 75.

Presumably when apps use this information they access it by ID? If so effectively, that would lower the significance down to a typo. Would focal length for '35mm format' ever differ from '35mm film' ?

[Archive]

[Originally posted by exiftool on 2008-11-17 21:47:15-08]

I'll start again from the beginning, in a bit more detail this time:

There is an XMP tag in the exif namespace that is called
FocalLengthIn35mmFilm according to the XMP specification.
ACDSee writes this incorrectly as FocalLengthIn35mmFormat.
By my terminology, these are the tag ID's (which I define as the tag
identification that is actually written to file).

ExifTool writes this tag using the correct ID ("FocalLengthIn35mmFilm"),
but the name it uses for this tag is FocalLengthIn35mmFormat.  ExifTool
sometimes uses names that are different from the tag ID's, but these
tag names should not be confused with the ID's that are written to
the file.

So the answer is that the typo is significant, because it is the ID that
is important.

- Phil

[Archive]

[Originally posted by louiscar on 2008-11-18 07:41:21-08]

Ok, I thought the 'ID' was a numerical value which could be used to extract the tag by it's position in the list.