Friday, February 27, 2015

Daguerreotype and Cyanotype Photography

Daguerreotype

Daguerreotype photography was invented by Louis Daguerre in 1839. In order to produce daguerreotype photographs, a photographer would polish a piece of silver-plated copper and make it look like a piece of mirror. A photographer would then treat it with a chemical to make it light sensitive and finally take a photograph, exposing the plate to the light as long as need be. Daguerreotype photographs characteristically have a metallic sheen to them are are black-and-white or in sepia tones. The photographs may also be framed by ornate gold borders.

Contemporary daguerreotype photographer: John Hurlock


Historical daguerreotype photographer: Robert Cornelius

Cyanotype

Sir John Herschel invented the cyanotype process in 1842, but it was Anna Atkins who applied the method to photography. Before, it had just been used as a means to copy notes and diagrams into blueprints.  The solution of a cyanotype photograph was painted onto specific paper and then exposed to the sun. Whatever elements may be lain atop of the paper, typically plants, will appear in an x-ray looking pattern. Cyanotypes are known for their dramatically blue hues.

Contemporary cyanotype photographer: Egill Ibsen


Historical cyanotype photographer: Anna Atkins

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