On 8/24/05, Winsor Crosby <wincros@xxxxxxxxxxx> wrote:
> I understand from some discussions I have read by people who know
> something about lens design that placement of the exit pupil is an
> important consideration for digital. For instance the rear element of
> the 17-35 is 40mm from the sensor, but the exit pupil is 100mm from
> the sensor.
Out of curiosity, how would this affect working with panoramas? I
think to do proper panorama work you're supposed to rotate the camera
on an axis that passes through the nodal point (which I've heard is
correctly referred to as the entrance pupil) parallel to the film
plane. I believe that normally the nodal point is Xmm away from the
film plane where X is equal to the focal length of the lens. But I'm
wondering if shifting around the exit pupil would also move the nodal
point?
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