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Re: Window reversal
- From: P3D Gregory J. Wageman <gjw@xxxxxxxxxx>
- Subject: Re: Window reversal
- Date: Mon, 23 Jun 1997 17:58:15 -0700
Dr. T. reminds us:
>>If you're using a twinned rig, remember the window's at infinity.
>Only if the lenses are parallel.
Good point! If they converge, the window is at the plane where the
normals to the film planes intersect, but converging them introduces
keystone distortion and isn't recommended, so window@xxxxxxxx would
be the usual case, at least for educated stereographers. :-)
-Greg W.
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