A print produced by the first instantaneous one-step photographic process, first developed by the American E.H. Land in 1947. Initially black-and-white film was used, with Polacolour being introduced in 1962. There are two types: the integral system where the photograph develops directly on to the print, and the peel apart system where the print is separated from a negative backing after exposure. Many of the areas it has been important in, such as studio or scientific photography, are now using digital photography.

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David Hockney
by Arnold Newman
NPG P150(21)

Stuart McPhail Hall
by Dawoud Bey
9 May 1998
NPG P730

Caryl Phillips
by Jillian Edelstein
NPG x87281

A. A. Gill
by Terry O'Neill
14 November 2003
NPG x126300

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