Re: cyano-toning

Philip Jackson (pjackson@nla.gov.au)
Tue, 31 Oct 1995 18:54:13 +22303754 (EETDT)

I tried the tannic acid cyanotype toner once and didn't achieve very good
results - slight to strong paper base stain, probably because I didn't use
Judy's two bath method or else I somehow contaminated the two baths. But
what put me off it definitively was that the prints gradually darkened
when exposed to strong light (i.e. after a few months in a west facing
window and after about a year pinned up indoors). Has anybody else tested
this?

Philip Jackson
pjackson@nla.gov.au