Cassell's Cyclopaedia of Photography, Volume 1Bernard Edward Jones |
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Common terms and phrases
actinometer action albumen alcohol alkaline alum amidol ammonia Ammonium aperture bichromate blue bottle bromide paper brush camera carbonate cent chemical chloride chrome alum coated collodion collodion process colour copper dark-room dark-slide developer dish dissolved Distilled water dried drms dry plates Eikonogen employed emulsion enlarging etching ether exposed exposure ferric ferrotype ferrous film filter fixing bath focal length focusing formula gelatine give glass green half-tone hydrochloric acid hydroquinone hypo immersed insoluble iodide lamp lantern lens lenses light magnesium metal method Metol minutes mixed mixture Molecular weight negative nitric acid object obtained ordinary oxalate photographic picture placed platinotype position potassium bichromate Potassium bromide potassium carbonate powder pyro rays salt screen sensitising sensitive shutter side silver bromide silver nitrate slides Sodium sulphite soluble solution suitable sulphuric surface tive toning transparent tube usually varnish washed yellow