The Theory of the Photographic Process

absorbed absorption acid alkali average characteristic curve Chem chemical color Comm compounds concentration constant crystal cyanine decrease density desensitizing determined developing agent diffuse Eggert electrons energy equation factor film foot-lamberts formation gelatin gradient grams Herschel effect Hurter and Driffield hydroquinone ibid illumination increase intensity iodide latent image layer light luminance Lüppo-Cramer maximum measured method metol molecules nuclei number of grains obtained optical sensitization p-aminophenol p-phenylenediamine paper particles Phot Photographic Development Photographic Emulsions photographic material photographischen Phys plates potassium potential precipitation produced pyrogallol quantum quinone reaction reduced region relation reversal salts sensitometric Sheppard silver atoms silver bromide silver chloride silver halide silver iodide silver ions silver sulfide sodium sodium sulfite solarization soluble solution specks spectral sensitivity speed sulfite surface temperature theory thiosulfate tion tone-reproduction Trivelli Ueber velopment wave length X-ray