Fanfare | 125 grams Potassium Ferricyanide $13.07 125 grams Ferric Ammonium Citrate $27.25 Cyanotype priceless |
I
t is time to make cyanotypes again. For the last four years during the summer, after I have finished teaching, I break out my alternative chemistry and begin making “heliographs”. This is an extremely enjoyable activity, which I seem to be able to do only as an intense action requiring complete concentration. It always takes a few days to get get back into the swing of things and crank up the production of hand-made prints.
“Sir John Herschel discovered, about the year 1840, that certain of the persalts of iron – the ferric salts – when exposed, in the presence of organic matter, undergo decomposition, and are reduced to the state of proto-salts, or ferrous salts.” - Ernst Lietze
