Tag Archives: gum bichromate

Gum Bichromate & Ziatype Workshops

Gum Bichromate Workshop Gum bichromate is a 19th century photographic process using gum arabic, photo-sensitive dichromate, and watercolor pigments to create monochromatic, duotone, or full color images. The results are each unique and 100% archival. This workshop will take participants through the steps from generating large format color separation negatives to final printing. All the materials […]

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