Various customers over time have purchased chemicals from us and enjoyed sharing information about their specific photo interest plus details of the process they used. From notes they left, we share some recipes and ways to create images with the Cyanotype Process and the Van Dyke Brown Process. http://www.sciencecompany.com/photo/index.htm http://blogs.law.harvard.edu/tech/rss Wed, 01 Nov 2006 16:33:28 -0700 Wed, 01 Nov 2006 15:04:37 -0700 FeedForAll Mac v2.0 (2.0.0.4) unlicensed version; http://www.FeedForAll.com/ The Van Dyke process is a basic silver salt emulsion, is nicely stable, is easily applicable to many different surfaces and produces a nice deep brown color. http://www.sciencecompany.com/photo/vandykeformulas.htm Wed, 01 Nov 2006 15:09:59 -0700 The cyanotype process was one of the first non-silver technologies used to create photographic images. To begin the process, two solutions are prepared for the two-part sensitizing process. Material sensitized with the solution is then printed by ultraviolet light. http://www.sciencecompany.com/photo/cyanoformulas.htm Wed, 01 Nov 2006 12:35:06 -0700