ДА ПРАВИШ ФОТОГРАФИЯ КАТО ПРЕЗ XIX ВЕК – ЦИАНОТИПИЯ
TO MAKE PHOTOGRAPHY LIKE IN THE XIX CENTURY – CYANOTYPE

Summary/Abstract: The text describes cyanotype, invented by Sir John Frederick William Herschel. It’s part of the so called noble photographic processes which create one of a kind copies. An image can be produced by exposing sensitized paper to a source of ultraviolet light (such as sunlight) as a contact print. 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: ferric ammonium citrate and potassium ferricyanide. The article is about the development of this process worldwide and its history in Bulgaria. Artists like Georgi Stoyanov Georgiev and Veneta Zaharieva are mentioned. The author is making cyanotypes and it will become an Educational program of History museum Samokov.

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