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Calculation of Exposure The Some New Methods C B 57
Inequality in the Images Produced by the Colour Filters
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A. W. PENROSE acid aperture arc lamps Arthur Cox Arthur Cox Illustrating artistic bichromate blue brush camera carbon Carl Hentschel Catalogue Illustration coating collodion emulsion collotype colour filters complementary colour copy deposit dry plate electric electrotyping Engraving etchers etching exposure Farringdon Road Fleet Street Gilchrist Bros give glass grain green half-tone half-tone blocks high-light ILFORD intaglio JOHN ROYLE lens light lines Liquid Lens litho lithographic London machine machinery Makers Manchester Manufactured Meisenbach mercury metal method millimetres minutes mould negative newspaper obtained operation ordinary ORTHOCHROMATIC panchromatic paper perfect Photo-Engraving photo-mechanical Photograph Photogravure picture possible post-card post-free postage powder practical Press Price printers Process Workers produced relief printing reproduction ROYLE screen sensitive silver bath Sinop spectrum square inch Stereotyping stop Street surface three-colour tone Trade transparency vapour lamp washing yellow zinc