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Path: utzoo!watmath!watdcsu!herbie
From: herbie@watdcsu.UUCP (Herb Chong [DCS])
Newsgroups: net.rec.photo
Subject: Re: Films...
Message-ID: <1206@watdcsu.UUCP>
Date: Wed, 3-Apr-85 11:17:53 EST
Article-I.D.: watdcsu.1206
Posted: Wed Apr  3 11:17:53 1985
Date-Received: Thu, 4-Apr-85 05:14:34 EST
References: <165@ucbcad.UUCP> <1042@hound.UUCP> <522@harvard.ARPA>
Reply-To: herbie@watdcsu.UUCP (Herb Chong [DCS])
Organization: U of Waterloo
Lines: 41
Summary: 

In article <522@harvard.ARPA> sasaki@harvard.ARPA (Marty Sasaki) writes:
>One thing to keep in mind while choosing film is that different color
>film has different life times. All color film fades over time, even if
>you store the developed film under archival conditions. Last time I
>looked Kodachrome had the longest life, followed by Ektachrome, and
>lastly all of the color negative films. Other slide films had similar
>life times as Ektachrome, and other negative films were similar to
>Kodak's.
>
>----------------
>  Marty Sasaki

another thing to keep in mind is that kodak's professional films have
NO appreciable shelf life.  Kodachrome Professional, Extrachrome
Professional, Tri-X Professional, and Vericolor are designed to be used
IMMEDIATELY.  that's why they should be shipped and kept frozen until
the last possible minute before thawing (as it were) and re-frozen as
soon as possible after exposure.

professional films are designed to have optimal color balance upon
manufacturing and should be purchased in batches for serious work.
tri-x professional is slightly different than regular tri-x and isn't
available in 35mm (i think).  it's base is different.  amateur file is
designed to age into the correct color balance after about 6 or 8
months at room temperature.  there's a kodak guide on their professional
films, but i don't remember the publication number.  other manufacturers
probably do the same thing as kodak, but i haven't seen ads of other
films with "professional" marked all over them.

for color print film, the differences are easily correctable in the printing
process, but many people prefer slides in professional work, and that
means less opportunity to correct the color balance.

Herb Chong...

I'm user-friendly -- I don't byte, I nybble....

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