Comments from previous article system:
By toddstew - 02:14 PM, 03-29-2006 Edit Rating: None
I develop my filmwith pyro, but I've never tried paper developed with it, and was wondering what it does with paper. In other words, why use pyro?
By Kino - 02:41 PM, 03-29-2006 Edit Rating: None
As I understand it, it imparts a warm tone to the paper. Don't know for sure, haven't ever tried it. The book dates from 1949 and the formulas often from WAY before that, so who knows? Maybe I'll get a chance to try it some day...
By toddstew - 02:36 PM, 03-30-2006 Edit Rating: None
I'd like to know how it works out for you. Maybe you could compare it with other paper developers you have used.
Todd
By Tom Hoskinson - 04:38 AM, 04-01-2006 Edit Rating: None
This Warm Tone Pyro formula can also be found on page 160 of Photographic Facts and Formulas (by E.J. Wall, F.C.S., F.R.P.S. and Franklin I. Jordan, F.R.P.S.) 1940 Edition, Copyright 1924, 1940 by American Photographic Publishing Co.
Published in 1940 by the American Photographic Publishing Co. Boston
Regarding warm tone paper developers, Wall and Jordan state: "Paraminophenol is usually used in proprietary form (Rodinal, etc.) it has the advantage of keeping indefinitely in stock solution, and exceptionally well when diluted for use. The tone of the prints can be quite materially changed by differences of dilution and by adding bromide."
"Warm tones can be secured by pyro, although not so conveniently as by the modified metol-hydroquinone developers which have generally superseded it for this purpose.