Photography, Theory and Practice: Being an English Edition of "La Technique Photographique", by L. P. Clerc |
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Common terms and phrases
acid actinometer alkaline alum ammonia aperture avoid bichromate camera carbon cent solution chloride chrome alum coating colour containing contrast dark-room density diameter diffused dilute dish dissolved distance drying dyes edges effect emulsion enlargement exposed exposure ferrocyanide filter fixing bath flash powders focal length focussing formed frame gelatine give glass grains hydroquinone hyperfocal distance hyposulphite illumination immersion increase intensity iodide lamps layer lens lenses less light liquid metal method metol mixture mounted necessary negative object obtained optical axis orthochromatic oxidation panchromatic paper photographic placed plane plates or films position possible potassium potassium bromide Potassium ferricyanide powder proportion quantity radiations reduced rinsing safelight salts screen sensitive sharp sheet shutter silver bromide silver chloride soda sodium sodium bisulphite soluble substances suitable sulphite surface tank temperature thick tion tones transparency usually various varnish washing yellow