I'm using the modern Apple iCloud Photos library on my iPhone and Mac.
How can I edit arbitrary EXIF metadata tags for photos in my iCloud Library?
The tags must be edited within the Photos.app / iCloud Photos database. I do NOT want to re-import the images, or be forced to make EXIF edits prior to using Photos to import the images.
I am mainly wanting to edit the photo EXIF on my Mac. An iOS tool that syncs the changes back to iCloud and the Mac would be ok, but a Mac-only solution is preferred.
The "Get Info" window can be used to edit some EXIF data in Photos.app on the Mac. You can add a Title, Description, Keyword, and Location. You can also Adjust Date & Time.
Other EXIF metadata tags such as "Camera Model" are displayed, but seemingly cannot be edited.
In my case, specifically, I have an old digital camera that does not embed Camera Information EXIF. I want to manually add this data to its photos after importing them to my iCloud Library.
I want to eventually use the Camera Model EXIF tags to create a Smart Album in Photos.app on the Mac containing only the photos taken with this camera.