Re: [APML] PPF400 35mm Available

["Jim Janusz" <jjanusz@dc.rr.com>]

Tony,

While I'm certain that all of your comments have some validity, my
experience is far from as bad as what you say.  I continue to use freezer
stored PPF with what I think is a slight increase in grain and no other
problems.

Here is a small part of a 120 PPF image taken for 30 mins. at f6. You can
all judge for yourself.

http://www.astroimager.net/PPFSample.tif

I know that eventually this stuff will die but so far it still looks very
useable.

Just my experience with this old friend, PPF.

Jim

----- Original Message ----- 
From: Tony Hallas
To: Shekhar Borde ; Discussion of FilmAstrophotography
Sent: Thursday, May 01, 2003 7:01 PM
Subject: Re: [APML] PPF400 35mm Available


Hello,

    I would like to confirm that any PPF 400 that exists today is only a
meager representation of its former self... it will be very grainy and half
dead from cosmic ray hits... freezing it will not stop this extra-gallactic
decay... the film will have no contrast and only 1/2 of its recording power.
(IMHO of course...)

      Tony



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