Rainer Wenzl
Sort By: Post Date | Title | Publish Date
Digital Darkroom
Rainer Wenzl Apr 01, 2006 0 comments

Over 200 years ago, scientists and photographers experimented with light-sensitive chemicals and developed a photographic printing process that utilizes watercolor paper coated with a base of gum arabic solution with dichromate salt and pigment. This solution, when exposed to sunlight, becomes insoluble and is able to withstand the test of time.

This photographic...