IPTC Information Somehow Being Saved To Uneditable EXIF Fields

[slewis]

I'm using PM 4.5.4 on an Intel-based Macbook Pro running OS X 10.5.5, and have come across a strange problem.  Somehow, IPTC caption information seems to be making its way into the EXIF fields (in the samples I have, the caption, copyright and author fields).  When subsequently changing those fields, the IPTC fields are changed; however, the data that somehow made its way into the EXIF fields will not change (the result is that you can potentially end up with two different captions, copyright statements, etc.).

Why would IPTC caption information be making its way into the EXIF fields?

[Kirk Baker]

I'm using PM 4.5.4 on an Intel-based Macbook Pro running OS X 10.5.5, and have come across a strange problem.  Somehow, IPTC caption information seems to be making its way into the EXIF fields (in the samples I have, the caption, copyright and author fields).  When subsequently changing those fields, the IPTC fields are changed; however, the data that somehow made its way into the EXIF fields will not change (the result is that you can potentially end up with two different captions, copyright statements, etc.).

Why would IPTC caption information be making its way into the EXIF fields?

Photo Mechanic does not write to those fields, but other applications like Photoshop do.

-Kirk

[slewis]

Is it possible that if IPTC caption information is applied before editing the image in Photoshop, and then the edited image is saved in Photoshop, that Photoshop would be copying IPTC information into the EXIF fields?

[Kirk Baker]

Is it possible that if IPTC caption information is applied before editing the image in Photoshop, and then the edited image is saved in Photoshop, that Photoshop would be copying IPTC information into the EXIF fields?

Yes, definitely.

-Kirk