Figure 13: Assembly Pins into the paper Registration Strips

Gum print registration

Instructions to register gum prints. Gum bichromate printing requires multiple pass to get the right density both for black and white and color prints. Here is how. Writer and photography / Andrea Baldi A reliable registration system is helpful to get multiple layers of the gum prints that do not show any misalignment in the different passes. For example, when you expose the second layer in a black & white … Read more

Sarah van Keuren

A Non-Silver Manual: Gum bichromate

The chapter called “Gum bichromate” of Sarah Van Keuren’s book “A Non-Silver Manual: Cyanotype, Vandyke Brown, Palladium & Gum Bichromate with instructions for making light-resists including pinhole photography”.