At 17:52 2/18/01, you wrote:
Which is more archival, kodak's tri-x pan consumer bw film, or Agfa's Scala
200X? I know the new c-41 process b&w films while fine grained lack
archival characteristics.
Thanks,
Eric
Eric,
I don't know about Scala 200X versus traditional B/W (Tri-X, Plus-X, T-Max,
etc.). Traditional "silver" B/W negative is _very_ archival. According to
Agfa, Scala 200X is one of the most archival storage media available. Its
processing is not like normal B/W negative and is proprietary to
Agfa. There is a special post-processing step that makes the
transparencies nearly impervious to atmospheric pollutants.
However, the newer C-41 process B/W negative films are no more archival
than C-41 color negative. It has the same structure as C-41 with three
color layers. The only difference is that the layers produce negative
shades of gray versus negative color.
You can read about some of the B/W flms here. Included are general
archival remarks about them.
http://www.phototechmag.com/buying_b-w.htm
-- John
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