Re: Converging lenses (was: Window reversal)

[P3D Gabriel Jacob <jacob@xxxxxxxxxxxxxx>]

George Themelis writes

>There are situtions in which positioning the stereo window
>by convergence is more important than possible errors
>introduced by keystone distortion.

Yes that is a valid situation, but is NOT to achieve a desired
effect as the original poster was trying to imply.
And this is only valid for small angles.

>I was reading an article in the newsletter of the "In Depth"
>stereo club of NJ, in which the author argued passionately
>the merits of converging the lenses.  He sounded quite
>educated to me.

Merits of converging? Can you be more specific. What merits?

>If there are stereo photographers who, for one reason
>or another, converge their lenses are are happy with what they
>get, I'd say it is an acceptable practice.

Hmmm interesting. D-D-Distortions are good? That means........
If there are stereo photographers who, for one reason
or another, use cheap viewers are happy with what they 
get, you'd say that it is an acceptable practice???

Gabriel, pretending to write like Dr.T! ;-)



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