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Re:How to Make Cyanotypes (2020) by frostburg on Monday July 26, 2021 @07:47PM (#27966942)
Pictorico OHP film is the best for this. Yellow ink is usually more UV-opaque, so I suggest using that to improve dmax.

There are ready-made toning curves to linearize the results, but to obtain reliable results a calibrated workflow is necessity in practice.

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