jcgrumman wrote:
I have read that EXIF data is not used with video. How did my friends video software autimatically correct a sideways video his daughter sent him?
That's something you'll need to ask Apple because the wiki page mentions 'no video support' (which I've already posted but I'll post it again: http://en.wikipedia.org/wiki/Exif#Problems - Section 5 Problems, 5th point) and the Spec doesn't mention video (http://www.cipa.jp/english/hyoujunka/kikaku/pdf/DC-008-2010_E.pdf), so...
jcgrumman wrote:
Do you agree that if you intentionally take a photo upside down, and the apple software automatically flips it upright, that this is not what a "high tech" camera would do?
I don't know. I don't own a high tech camera. This has nothing to do with the points I'm making.
But I think I know what you're getting at (correct me if I'm wrong). You're saying that a high tech camera will also flip the picture? Probably??? I'm not disputing that. To link into the point I'm making, I'm disputing that the picture taken upside down with the hitech camera will have an EXIF rotation of 180, not 0. The iphone says 0 when taken upside down. Try it for yourself (regex.info/exif.cgi). The exif info is upside down, the internal camera is upside down. How can you blame other software for not conforming to a spec that you are not conforming to properly? Fix all that, THEN you can blame Windows for not conforming. These type threads will then diminish for all pictures taken upright. When this is fixed you'll still get threads popping up saying I held my iphone 'this way' but it shows up sideways. This is when you can explain how exif works and say Windows needs to comply.
But (and now I'm going to repeat myself), a standard camera is made to be used a certain way, ie if you hold it upright, you're taking upright pictures. If you hold it sideways, you're taking sideways pictures etc. The iphone can be held different ways,but THEY ADVERTISE IT AS BEING UPRIGHT WHEN THE VOLUME BUTTON IS ON TOP AND USED AS THE SHUTTER BUTTON. This is it's upright position. EXIF should say 0, but it says 180. If on the other hand Apple wanted us to take photos with the phone in it's 'calling' position, ie home button on bottom, then exif should say 0 in that position, etc etc.
Having said all that I do have an old Sony DSC-W1, which is at least 5 years old now and is NOT a high tech camera (by that I assume you meant a current SLR??), but is 5.1 mp??? I flipped it upside down and the picture shows upside down (in the viewer). It takes the pic upside down and when run through the exif viewer (regex link above), the orientation says 'Horizontal (normal)'. When I take a picture the right way up, the orientation still says Horizontal (normal). If I take it sideways it also says Horizontal (normal). I don't think it uses the exif orientation format, that's how old it is, but at least its internal camera is not upside down when held upright.