Showing posts with label history. Show all posts
Showing posts with label history. Show all posts
Tuesday, 29 January 2013
Saturday, 26 January 2013
Friday, 2 November 2012
Cyanotype chemicals and process.
Cyanotype : Invented in 1842 by Sir John Herschel, the cyanotype is one of the first permanent photographic processes, and one of the oldest. This process was originally employed as a means of copying documents. In 1845 the cyanotype process was appropriated by Anne Atkins to produce photograms of botanical specimens.
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