Re: preliminary summary on ghosting

[P3D Clifford J. Mugnier <cjmce@xxxxxxxxxxxxxxxx>]

P3D John Bercovitz wrote:
> 
> Rafael Ramirez writes:
> > Best thing in this case seems to be advice #1:  Place flat polarizers as the
> > LAST element of the projection chain or the optical path.  Not much can be
> > done if polarized light must passed through a complex and very "bending"
> > optical path.
> 
> Actually, you could put them before the transparency and after the lens.
> You don't lose a horrible additional amount of light by doing this.
> This would cut the heat to the slide and perfect the polarization.
> What?  Two polarizers in one light path?  Are you nuts!?  8-)
> 
> John B

I use GEPE glass-mounts (individual 35mm) with two projectors and I just
sandwich a polarizing filter into each glass mount.  Sure makes for a
real KISS-type slide show, regardless of whose projectors you use.

-- 
Clifford J. Mugnier  (cjmce@xxxxxxx)
Topographic Engineering Laboratory
Department of Civil & Environmental Engineering
University of New Orleans
New Orleans, Louisiana  70148
Voice: (504) 280-7095
FAX:         280-7095


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