Re: Found a copy of "elementary photographic chemistry" Kodak, 1936

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From: Philip willarney (pwillarney@yahoo.com)
Date: 10/30/02-01:34:44 PM Z

--- Richard Knoppow <dickburk@ix.netcom.com> wrote:
..snip..
> FWIW, I have the 1921 edition and the 1934 edition
> of
..snip..
> booklet. The 1921 edition was published before any
> of the
> familiar Kodak formulas, like D-76 (1926) or D-72
> (Dektol)
> existed. The film developers are Pyro types,
> something Kodak
> seemed to avoid later.

The formulas in this edition do use the Kodak
numbering scheme (e.g. D76, D76R) and there's at least
one pyro based film developer formula. I continue to
be fascinated at how many different chemical mixes
will coax an image from an undeveloped film.

-- Philip

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