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Alternative Photographic Processes


Procedures that evoke the beginning of photographic history provide insight into the “alchemy” of photography. Unlike the traditional silver-based technique, the sensitivity of the materials in the process, developed by English astronomer Sir John Herschel, is given by organic iron salts. During the process, the precipitation of iron provides the characteristic colour of the images made with this method. Photosensitive materials can be mixed manually and applied to the paper with a brush. Both solutions (cyanotype, argyrotype) are only sensitive to UV rays, so there is no need for a darkroom during the process, you can sensitize the paper under normal lamp light, and exposure takes place outdoors in the sunlight.

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