Date: Thu, 6 Jan 2005 18:36:50 +0100 From: Simon Budig <simon@xxxxxxxx> Robert L Krawitz (rlk@xxxxxxxxxxxx) wrote: [Exif orientation tag] > The obvious question is: if the rotation information isn't important, > why does the camera even bother with it, as opposed to doing the > rotation inside the camera? Why does EXIF even have a rotation tag if > it's useless? Good question. Actually I have wondered quite a lot about that already. Why the fuck doesn't a camera with an orientation sensor store the Jpeg in the proper orientation (quite cheap from a computational POV, just shuffle some coefficients around) and stores an *absolute* orientation tag in EXIF. What is "absolute" orientation? Orientation by its very nature has to be relative to *something*? I presume from what you say below that you mean orientation of the camera. I don't want to lose those two bits of information.