The Photographic News: A Weekly Record of the Progress of Photography, Volume 40Cassell, Petter, and Galpin, 1896 |
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Page 285
... ammonia , pyro and soda . " P. J. CONDON . - There is absolutely no advantage in using pyro with soda and ammonia ; one or the other should be used , and soda for preference . Pyro , 2 grains ; potassium bromide , 1 grain ; washing ...
... ammonia , pyro and soda . " P. J. CONDON . - There is absolutely no advantage in using pyro with soda and ammonia ; one or the other should be used , and soda for preference . Pyro , 2 grains ; potassium bromide , 1 grain ; washing ...
Page 464
... Ammonia .- " How should 10 per cent . solution of pyro ammonia be used for instantaneous work ? " AMATEUR.— Measure out 5 minims of pyro solution , 5 minims of bromide , and 20 minims of ammonia , dilute with water to 1 oz . , flow over ...
... Ammonia .- " How should 10 per cent . solution of pyro ammonia be used for instantaneous work ? " AMATEUR.— Measure out 5 minims of pyro solution , 5 minims of bromide , and 20 minims of ammonia , dilute with water to 1 oz . , flow over ...
Page 760
... ammonia and the procedure ren- dered necessary by these defects are two - fold . In the first place , ammonia , if in excess and unless well restrained by a bromide , has the power of reducing the sensi- tive film where no light has ...
... ammonia and the procedure ren- dered necessary by these defects are two - fold . In the first place , ammonia , if in excess and unless well restrained by a bromide , has the power of reducing the sensi- tive film where no light has ...
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Common terms and phrases
acid amateur photographers amidol ammonia aperture apparatus bath bromide paper carbon cent chloride chrome alum citric acid colour competition dark room dark slide developer dish distance drachm edge Editor eikonogen enlarging exhibition exposed exposure film fixed focus frame front gelatine give grains graphers grooves ground glass half-plate hand camera hydroquinone hypo inches interest lamp landscape lantern slides lens lenses light lines London matter Messrs method metol mount necessary negative object obtained ordinary ounce Photographic Society picture piece plate platinotype portrait possible potassium potassium bromide practical prize pyro quarter-plate rabbet rapid rectilinear rays readers rectilinear lens retouching round screw shutter side silver slot soda sodium sulphite solution stereoscopic sulphite sulphocyanide taken Thornton-Pickard tion toning tube varnish washing week wood yellow