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T Thorne Baker F C S Isochromatic Photography Photo
Henry W Bennerr F R P S Architectural Photography Carbon
A H Blake M A Night Photography
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acetic action albumen alcohol alkaline alum ammonia ammonium aperture bichromate blue bromide paper brush camera carbonate cent chemical chloride chrome alum Citric acid coated collodion collodion process colour copper dark dark-room density developer dissolved Distilled water dried dry plates dyes Eikonogen emulsion enlarging etching ether exposed exposure ferric ferrotype film filter fixing bath focal length focusing formula gelatine give glass half-tone hydrochloric acid hydroquinone hypo immersed insoluble iodide lamp lantern lens lenses light lines magnesium metal method metol mins minutes mixed mixture Molecular weight negative object obtained ordinary oxalate photographic picture placed platinotype position potash potassium bichromate Potassium bromide potassium carbonate powder pyro rays reduced salt screen sensitising sensitive Sensitometry shutter side silver bromide silver nitrate slide Sodium carbonate Sodium sulphite soluble solution suitable surface Synonyms tion toning transparent tube usually varnish washed yellow