The Photographic News, Volume 53William Crookes, George Wharton Simpson Cassell, Petter, and Galpin., 1908 |
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Page 15
... acid clearing bath . Here we have to employ an acid to " clear " the film when , for example , using the ferrous - oxalate developer , and the acid is apt to cause trouble with the gelatin film . But , although we could not well use ...
... acid clearing bath . Here we have to employ an acid to " clear " the film when , for example , using the ferrous - oxalate developer , and the acid is apt to cause trouble with the gelatin film . But , although we could not well use ...
Page 351
... acid ( you can do with , say , four ounces of this , you need it for platinotype , and you will find it useful for cleaning badly - stained dishes ) ; sulphuric acid ( one ounce of this will do , probably ) ; citric acid ( one ounce ) ...
... acid ( you can do with , say , four ounces of this , you need it for platinotype , and you will find it useful for cleaning badly - stained dishes ) ; sulphuric acid ( one ounce of this will do , probably ) ; citric acid ( one ounce ) ...
Page 384
... acid . P.O.P. prints must first be hardened with alum or formalin , and well washed , but platinum prints do not need this treatment . Violet ( aniline ) can gene- rally be removed by a 5 per cent . solution of sodium sulphite slightly ...
... acid . P.O.P. prints must first be hardened with alum or formalin , and well washed , but platinum prints do not need this treatment . Violet ( aniline ) can gene- rally be removed by a 5 per cent . solution of sodium sulphite slightly ...
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A. H. Blake acid Alvin Langdon Coburn AMATEUR PHOTOGRAPHERS amidol Arthur Marshall artist autochrome awarded BARNET Barnet Ortho bath best picture bromide paper bromide print carbon carbon print chloride chrome alum colour dark dark-room developer dissolved effect enlarged exhibition exposure Extra Rapid Plate foreground gelatine give glass hand camera hypo ILFORD interest Kodak landscape Lantern Slides Lecture lens light and shade London Malcolm Arbuthnot MAWSON Medium Messrs method metol minutes mount negative obtained ordinary plate Ortho plate ounces Paget Percy Lewis Photographic Society pictorial piece platinotype portrait potassium practical prize pyro pyro-soda RAJAR readers result Road Rodinal Royal scenes screen sensitised shadows shutter side silver silver bromide silver nitrate sodium solution Special Rapid speed Street sulphide Technical data Thornton-Pickard toning washing week Weekly Competition WELLINGTON workers WRATTEN yellow