The Platinum Print - Photographic Processes Series - Chapter 7 of 12

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Platinum prints are characterized by their delicate surface and subtle tonal gradations. They are made by sensitizing paper with iron salts and exposing the paper in contact with a negative until a faint image has formed. The paper is then chemically developed in a process that replaces the iron salts with platinum and intensifies the image. Platinum prints were popular with art photographers around the turn of the twentieth century, but when World War I caused the price of platinum to rise, palladium (a related metallic element) was introduced as a more affordable substitute.

This project is made possible by a grant from the U.S. Institute of Museum and Library Services, grant number MA-10-13-0194.

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