P3D Re: PHOTO-3D digest 3129

[boris@xxxxxxxxxxxx (Boris Starosta)]

>From: Jim Hemenway <jim@xxxxxxxxxx>
...
>In what situations will I need to be concerned with toe-in?

Anytime you want to maximize the use of the film (i.e. minimize the
cropping ordinarily associated with proper setting of the stereo window),
toeing in will help.  That's because toe-in effectively places the stereo
window at the intersection of the cameras' optical axes.  If you shoot
vertical format full frame 35mm, toe-in is very desirable, especially for
the close-up work I am so fond of.

With some compositions keystone distortion becomes a problem.  You either
avoid those compositions, or put up with the distortion.  If my budget was
unlimited, I would shoot my vertical format full frames with a twin SLR
using shift/tilt lenses.  If only I could shift my lenses inwards, I would
not have to toe in.

This is not an option with the two XAs.

>Also... If anyone has already done this with EMs, should I always
>shoot at a 90th/sec and use a separate light meter?  Or will the
>cameras choose the same speed?   ...the EM is aperture priority.

Although I have no experience with this camera, I expect you would have
problems.  Shoot in a manual mode if possible, to ensure that both cameras
are actually using identical settings.




Boris Starosta            boris@xxxxxxxxxxxx
                          http://www.starosta.com
usa 804 979 3930          http://www.starosta.com/3dshowcase



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