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New Dimensions in Photo Processes, 4th Edition by Laura Blacklow

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Chapter 7    Cyanotypes

  Materials

  Making the Stock Solution

  Making a Cyanotype

  Cyanotype on Fabric

  Toning Cyanotypes

Cyanotypes, or blueprints, are light- to deep-blue images that can be inexpensively printed onto paper and fabric. Properly made, cyanotypes are permanent and can be combined with other hand-applied emulsions as well as traditional artists’ pigments and pastels. They tend to exhibit less middle tones than other processes described in this book but using the directions in Chapter 6 will overcome this characteristic.

British astronomer and scientist Sir John Herschel (my personal hero, who, in 1819, discovered and freely shared how to “fix” silver-based photos with sodium thiosulfate—the fixer used to this day—and ...

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