Re: Ghosting due to high-contrast subjects vs depolarization

[P3D Sandman <sandler@xxxxxxxxxxxxxx>]

P3D Kenneth Luker says:
>Dissolver has the polarization filters between the lamps and the slide.  He 
>said that the problem could have been overcome by putting the polarizers 
>beyond the lens, so the last thing the light passed through before hitting
>the screen was the polarizers.  For what it is worth.  Peter dismisses this 
>explanation, as quoted above.  
>Ken Luker
>

Have thought it might have been the screen.  With high contrast stuff
ghosting even a little might have been noticeable.  Where did it occur:

Filter before slide
slide
Glass after slide
filter after slide
Screen
Glasses

There is a reason that a silver, not a white, screen should be used.  Even
if it was silver.  There is diffusion.  The question could be answered by
doing a piece by piece analysis but we should include all prices.

Sandler

PS: No FLAMAGE PLEASE.  I am not saying it _was_ the screen I am just
saying it _might have been_ the screen.


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