Hi Pablo, 

On Mon, Jan 24, 2011 at 11:35:46PM +0100, Pablo d'Angelo wrote:
> Pre-rotating the images outside hugin is not a good idea. Even if hfov 
> and a/b/c parameters are applicable, what about the shift parameters 
> d/e? Left or right rotation makes a big difference here, and there is no 
> reliable way for hugin to figure that out.

Why not? When I get back from vacation I usually run a script on my
pictures collection that uses the exif info to rotate all portrait
images. This has the added advantage for the panorama photos that when
I load them into Hugin, and when I want to do manual control points,
they start out right-side-up. So: Why not rotate them?

(The "hfov" parameter becomes a bit ambiguous, I agree. And it becomes
non-obvious that the 90 degree HFOV (landscape) and the 60 degree HFOV
(portrait) shots are from the same lens....  Instead of using hfov, I
think we should move to 35mm-equiv-lens-length or diagonal-fov.)

        Roger.

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