View Full Version : Non silver based emulsion
Mustafa Umut Sarac
07-24-2012, 02:11 PM
Photo Engineer is older than my father and crown jewel at this forum . I am very satisfied with his copper answer. Its hot and life is not easy , lets not make it harder for anyone.
Thank you PE for everything ,
07-24-2012, 03:16 PM
But is there a process that makes red images??
One of the old photos mags in the 70s had an article on making reddish colored prints using copper. The color was red, with a bit ot brown tint, if I remember right. It needed UV to print, and the time I played with it I never got a very deep D-Max on the prints.
The process uses copper sulfate, sodium citrate, sodium acetate, and potassium ferricyanide.
Here's an example I found on the web:
And a nice article on it:
07-24-2012, 03:33 PM
Has uranium printing been mentioned for red? If not... uranium.