Long-term Stability of Chromogenic B&W Films

greenspun.com : LUSENET : B&W Photo - Film & Processing : One Thread

Many people are (for good reasons, I suppose) fond of films like Ilford's XP 2, or Kodak's T-max CN. As fas as I know, the developed image of these films consists of organic dyes rather than the silver in conventional films (including films with special grains, such as T-maxes and Deltas). Is anyone aware of information on the long-term stability of the dyes? (All I know is that even todays color emulsions exhibit some fading over the years, and there is a strong family resemblance between them and the chromogenic b&w films.) With most of us being concerned about archival stability, this seems an interesting issue.

-- Thomas Wollstein (thomas_wollstein@web.de), October 22, 1999


I havebeen using XP film for about 17 years. My original negs show no sign of deterioration. Hope this is of some help.


-- Anthony Brookes (gdz00@lineone.net), October 22, 1999.

Same here.

-- Bill Mitchell (bmitch@home.com), October 22, 1999.

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