Art is a journey into the most unknown thing of all - oneself. Nobody knows his own frontiers… I don’t think I’d ever want to take a road if I knew where it led.

Louis Kahan

An experimental cyanotype of an engraving of a lady with a harp, by Sir John Herschel (1792-1871), 1842.

Herschel invented the cyanotype or ‘blueprint’ in 1842, employing iron salts (ferric ammonium citrate and potassium ferricyanide) which produce Prussian blue under the action of light. It was a simple process to use and required only water as a fixative.

The cyanotype was the only first-generation photographic technique to find any lasting use.

link

An experimental cyanotype of an engraving of a lady with a harp, by Sir John Herschel (1792-1871), 1842. Herschel invented the cyanotype or 'blueprint' in 1842, employing iron salts (ferric ammonium citrate and potassium ferricyanide) which produce Prussian blue under the action of light. It was a simple process to use and required only water as a fixative. The cyanotype was the only first-generation photographic technique to find any lasting use.

link



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