[ptx] panosifter problems & questions

[Bruno Postle]

On Tue 17-Feb-2004 at 10:37:00AM +0100, Terje Mathisen wrote:
> 
> IMHO, the proper way would be to calculate all crop factors relative to 
> a film/chip plane diagonal, since this diagonal determines the size of 
> the optics, right?

The annoying thing is that this would all be so simple if cameras
just listed focal length in units of pixels - Everything else would
be easy to derive whatever the orientation and aspect ratio.

-- 
Bruno