Re: Composing for window effects

[P3D Grant Campos <gc6094@xxxxxxxxxxxxxxxxxx>]

> We must distinquish between "positive" and "negative" deviation, easily
> understood when the images are projected and superimposed.  If you overlap
> unmounted Realist chips you will see that the images overlap at 7p which
                                                                  **
Did you mean the objects at 7 feet overlap?                       

> is the location of the stereo window in the Realist camera (this is built
> in the camera by slightly shifting the center of the apertures with
> respect to the center of the lenses.)
> 

I'm trying to use my grey cells to figure out if the centers of the aperatures
are shifted toward each other or away from each other.  Can you help me out?
And by aperature, you're not talking about the f/stop openings, right?  You're
talking about the aperature against the film, the frame aperature?  Doesn't
this shifting cause keystone distortions?  Maybe that is why slide-bar stereo
pictures look more real sometimes.

> All this sounds complicated but it is easily understood if you
> draw a few simple drawings or experiment in mounting or projection.
> 
> -- George Themelis


Does the Kodak have this same shifted aperatures as the Realist? 

--- Grant Campos


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