"J. P. Gilliver (John)" wrote

| Any JPG that requires software to check the
| orientation EXIF tags is a faulty image.
|
| I'm not quite sure what you're saying the if you acknowledge the
| _existence_ of the orientation tag (I didn't know it was part of EXIF
| but that makes sense), then what would you consider its function?

Yes, it's part of EXIF. Bit EXIF is not universally supported
and it's only in JPGs. There's just no reason to need that tag.
The camera can save the image as it's taken. Instead of doing
that they create all sorts on incompatibility. I get a lot of those
sideways images. People don't know because they're seeing it
on their iPhone where they took the picture. I don't understand
why they ever would have used such an idiotic method. Whatever
edge of the camera is up should be the top of the picture.