Photography: Its History, Processes, Apparatus, and Materials: Comprising Working Details of All the More Important Methods |
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Photography, Its History, Processes, Apparatus, and Materials, Comprising ... A. Brothers No preview available - 2016 |
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action of light albumen albumenised paper alcohol ammonia Ammonium aperture appear bath bitumen blue camera carbon cause chemical chloride coated collodion process collotype colour copper daguerreotype dark developing solution diaphragm dish dissolved drachms dried dry plates effect eikonogen employed emulsion etching experiments exposed exposure ferric oxalate ferrous film filtered fixing fluid focal length focus focussing formulæ gallic acid gelatine plates gold Gold chloride grains ground glass half-tone haloid inches iodide iron kind lantern lens lenses metal method minutes mixed necessary negative nitric acid object obtained ordinary ounces ounces of water patented photographic picture placed platinotype platinum portrait position potassium bichromate potassium bromide potassium ferricyanide prepared prints produced purpose pyrogallic acid pyrogallol quantity rays reduced removed salt screen sensitised sensitive sheet silver bromide silver nitrate slide sodium thiosulphate substance sufficient sulphate surface taken Talbot toning transparent varnish washed wet collodion yellow zinc