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Re: Kodak Professional T400 CN Film (Process C-41)



> How permanent are T400 CN negatives?
> Judging from a variety of accelerated image permanence tests,
> the negatives
> are expected to have a useful life for printing similar to
> color negative
> films, and perhaps longer for printing on traditional
> black-and-white paper.

If so, then the life expectancy of the image on the negative is about 50
years if stored at very low temperatures and in complete darkness.  More
information on longevity/stability of color film (in particular color
microfilm) is found in ANSI/NAPM IT9.9 Stability of Color Photographic
Images - Methods for Measuring and ANSI/AIIM TR9 Color Microforms.

Ginny Jones
(Virginia A. Jones, CRM, MIT/LIT)
Records Manager
Newport News Dept. of Public Utilities
Newport News, VA
vjones@nngov.com
>

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