Viewer discards EXIF orientation tag of JPEG images

[Lesmo16]

However picture 5 (left, top) and 7 (right, bottom) are wrongly rotated.

Yes, finally confirmed.

I just tested with photographs taken with several cameras - all were fine.
Orientations/Situations like your pictures 5 or 7 can't be taken with a camera.

Info: http://impulseadventure.com/photo/exif-orientation.html

[ghisler(Author)]

Thanks for the sample images, I didn't have any for these impossible values!

[tbeu]

Thanks for the sample images, I didn't have any for these impossible values!

Luckily there are content plugins to modify the Exif orientation.