John Herschel

Collection by Micaela Galli

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John Metoyer, “Cyanotype Proof of ‘Sir John Herschel’s Dream'” (2004) (© John Metoyer) (click to enlarge)

Photography's Blue Period Gets Its First Major Show in the US

In 1842, British scientist Sir John Herschel experimented with the effect of light on iron compounds, inventing a process to produce the blue-tinted prints we know as cyanotypes.

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

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

Sir John Herschel. "The Honourable Mrs. Leicester Stanhope," 1836. Cyanotype.

University Blog Service - University of Texas at Austin

University of Texas at Austin

23 Rare Cyanotype Photos Document Everyday Life of Sweden Before 1900

23 Rare Cyanotype Photos Document Everyday Life of Sweden Before 1900

Cyanotype is a photographic printing process that produces a cyan-blue print. The English scientist and astronomer Sir John Herschel discovered the procedure in 1842, and engineers used the process well into the 20th century as a simple and low-cost process to produce copies of drawings, referred to as blueprints. The process uses two chemicals: ammonium iron(III) citrate and potassium ferricyanide. These vintage photos are cyanotypes that were taken by Carl Curman (1833–1913), a physician…

Photography's blue period gets its first major show in the US || In 1842, British scientist Sir John Herschel experimented with the effect of light on iron compounds, inventing a process to produce the blue-tinted prints we know as cyanotypes.

Photography's Blue Period Gets Its First Major Show in the US

In 1842, British scientist Sir John Herschel experimented with the effect of light on iron compounds, inventing a process to produce the blue-tinted prints we know as cyanotypes.

John Herschel /View of the telescope at Slough,1839

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nardotinoniel: “ John Herschel View of the telescope at Slough,1839 ”