RE: 3D Wizards

[P3D Larry Berlin <lberlin@xxxxxxxxx>]

>Date: Tue, 19 Aug 1997
>From: P3D Gregory J. Wageman writes:
>
>>Larry Berlin wrote:
>>Of interest was the evidence of a lack of symmetry in the camera. .....
>
>I can think of two other reasons to explain what you saw, other than
>variances in the camera's lenses.  Since these were prints, there's
>the possibility that the enlarger was adjusted slightly during printing,
>which would change the size of an image, but if this were the case
>you should be able to see it for example by superimposing the prints on
>a lightbox.  The second possibility is that if the prints were different
>distances apart when you cross-viewed them, your brain was interpreting
>the different convergence required as a difference in distance (and
>therefore, size).
>
<<<<<<<<<<<<<<<<<
I'm about 4 digests behind in my reading...

I think your first idea is likely closer to the real reason. The second one
I had thought of and that's one parameter I play with all the time anyway.
It wasn't the spacing of how they were laid out. It could be image trimming
in the enlarger. I'll have to check the triplets on the negative to make
sure. I suppose I'll find that the lenses are in fact symmetrical. They
certainly look it in the camera itself.

Thanks,
Larry Berlin

Email: lberlin@xxxxxxxxx
http://www.sonic.net/~lberlin/
http://3dzine.simplenet.com/


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