P3D Re: 82mm stereo polarizer?

[fj834@xxxxxxxxxxxxxxxxxxxxx (Dr. George A. Themelis)]

>I thought the tip of using a single, 82mm polarizer (or any kind of)
>filter was ingenious. But, I heald a ruler at 82mm across my Sputnik
>lens (which are shorter interoculer distance than a Realist) and I
>still don't know how you'd avoid some vigenetting - esp. if the filters
>rim was wide.

I see there is an even wider filter listed at 90+ mm (forget the 
exact size.  Would the larger one be better?  Please advise because
these filters are not exactly cheap! :-)

George Themelis


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