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From: dth@cs.brown.edu (Dzung T. Hoang)
Newsgroups: sci.electronics
Subject: Re: IR Reception - Modulation and Quality
Message-ID: <74733@brunix.UUCP>
Date: 7 May 91 08:39:27 GMT
References: <2766.27E40773@ofa123.fidonet.org> <159639@felix.UUCP> <237@tdatirv.UUCP> <10162@plains.NoDak.edu>
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Reply-To: dth@cs.brown.edu (Dzung T. Hoang)
Organization: Brown University Department of Computer Science
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For an inexpensive IR filter, try developing unexposed slide film--the
positive variety, not the normal negative type.  Since the film has been
unexposed to visible light, but has been exposed to infrared in the form
of heat and maybe in the photo lab, it should work.  I read about this
a long time ago somewhere.
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Dzung T. Hoang
dth@cs.brown.edu
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