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| Gum bichromate |
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| Cyanotype |
Gum bichromate is a 19th-century photographic printing process based on the light sensitivity of dichromates. Gum printing is traditionally a multi-layered printing process
A Cyanotype is a printing process that produces a cyan-blue print. Engineers used the process well into the 20th century as a simple process to produce copies of drawings, referred to as blueprints.
Use of Textures
Wet-plate process, also called collodion process , is an early photographic technique invented by Englishman Frederick Scott Archer in 1851. Wet plates are generally gray scale.The imperfections in each photo caused by debris, scratches, and changes in chemical reaction are what make them unique.
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| Wet Plate |
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