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From: walton@tybalt.caltech.edu.UUCP
Newsgroups: comp.sys.amiga
Subject: Jitter-Rid
Message-ID: <1870@cit-vax.Caltech.Edu>
Date: Thu, 26-Feb-87 15:31:32 EST
Article-I.D.: cit-vax.1870
Posted: Thu Feb 26 15:31:32 1987
Date-Received: Sat, 28-Feb-87 06:42:20 EST
Sender: news@cit-vax.Caltech.Edu
Reply-To: walton@tybalt.caltech.edu.UUCP (Steve Walton)
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Organization: Calfornia Institute of Technology
Lines: 27
Keywords: jitter rid interlace flicker ideas created


I went into a local store yesterday which carries Jitter-Rid and had a
look.  Here is a bit of speculation on what it does.

What is it?  The salesman said it isn't a polarizer; he'd put one in
front of another one and rotated them relative to each other.  To me,
it looked like a piece of relatively dark plexiglas with less than 50%
transmittance (perhaps 25%, since it was not as dark as my Bausch and
Lomb Ray-Ban glasses which come it at 15%).  The opacity was such that
"black" areas of the screen became truly black on the Amiga monitor he
was using (with its brightness and contrast controls centered; I
checked.)  The effect was the same as you'd get by turning down the
monitor's brightness down quite a bit and shutting off your room
lights.  However, the brightness knob on the 1080 doesn't go down
nearly far enough to reduce it to the point the Jitter-Rid does.  It's
also difficult to work in the dark, especially during daylight :-).

Conclusion: You could probably duplicate the Jitter-Rid yourself by
cutting a piece of dark plexiglass into a rectangle the size of your
1080's bezel, gluing Velcro eye material to each corner, and gluing
Velcro hook material to corresponding points on your monitor.  You can
decide for yourself whether it's worth spending $15 to save yourself
this hassle.

Stephen Walton			ARPA:	ametek!walton@csvax.Caltech.EDU
BITNET:	WALTON@CALTECH
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