I will be giving information on these processes on this page http://retrostock.wordpress.com/alternative-printing-processes/
Tag Archives: gumbichromate
The gum process was introduced in 1894, and was one of several introduced about this period, enabling photographers to obliterate many of the photographic qualities. A gum bichromate practitioner could alter the tones, get rid of details, and using a brush, pencil or rubber, could change an image so much that it looked more like […]