[alt-photo] Re: coffee and cyanotype

[Loris Medici]

Christina, developing in coffe sounds interesing indeed. Can't speak
for coffe but I'm a little bit skeptical on the assumption it would
give good results with tannic acid; the variant I have on hands seemed
it was acting in every part of the paper where iron was present...
(Ferric or ferrous - don't know about its chemistry too...)
Nevertheless, that's something that should be definitely tried (both
with coffe and tannic acid), thanks for mentioning.

Regards,
Loris.


2012/1/13 Christina Anderson <zphoto at montana.net>:
> But Rob mentions DEVELOPING in coffee (no wash water first and toning later!) and that is what intrigued me.  I think
> developing in a tray of tannic or gallic would get costly as you'd have to throw the tray after a session as it gets all blue. I
> keep a gallon of the tannic mixed up. But everyone (mostly) has leftover coffee in their pots on a daily basis so how cheap
> would that be!