Archived posting to the Leica Users Group, 2000/04/29

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Subject: Re: [Leica] archival quality of XP2, Tmax400CN or Colour Neg
From: (Hans-Peter.Lammerich)
Date: Sun, 30 Apr 2000 07:43:41 +0200

"Mike Durling" <> wrote

"I remember a conversation with a Kodak rep about 15 years ago about their
color negative motion picture film.  When I asked about its archival
qualities he said it was indeed archival and gave me a long technical
explanation, most of which went over my head.  I asked how it compared with
the old emulsions.  He said they were good too!"

Well, Kodak's recommendation for storing colour motion picture film are 
for Medium-Term Storage (10 years): Relative Humidity Range 20-30%, Maximum 
Temperature 50F/10C, for Extended Storage 20-30%, 36F/2C. In comparisan to 
that silver gelatin is less demanding: 70F/21C for Extended Storage.

Anyhow I believe that colour negative motion picture film is not C41 material!

Isn't there a demand for permanency from press and wedding photographers using 
C41 (nowadays maybe less for wedding)?