The Dictionary Of Photography

A True Historic Record Of The Art & Practice Of Photography 100 Years Ago.

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Bromide Paper
with great success by many operators, but there is again with this developer a tendency to brown in the deposit, which is extremely unpleasing to some. We can recommend the following for black tones: -
No. i.
Quinol           ...............     154 grs.
Sodium sulphite (recryst.)            ... ...    437 ..
Sulphurous acid ............      20 minims.
Distilled water, to make ... ... ... 10 ozs.
No. 2.
Sodium carbonate......        ...        ...1,300 grs.
Potassium hydrate ... ...        ...        ... 154 ..
Potassium bromide ... ...        ...        ... 20 ..
Distilled water, to make ...        ...        ... 10 ozs.
Mix in equal parts, and dilute with three times the quantity ot water.
and Pyrocatechin developers serve well for bromide paper; but the preparation as described under De-velopment and Developers should be diluted somewhat - generally with from 3 to 5 volumes of water.
Eikonogen. We have found the following formula satis-factory : -
No. 1.
Eikonogen ,.. ... ... ... ... 50 grs.
Sodium sulphite ... ... ... ... 50 ,,
Distilled water, to make ... ... ... 10 ozs.
No. 2.
Sodium carbonate...... ... ... 437 grs.
Potassium hydrate ... ... ... ... 56 ,,
Distilled water, to make ... ... ... 10 ozs.
For use mix in equal parts, and add an equal quantity of water.
Amidol. The following developing formula is satisfactory, more or less potassium bromide may be used as a restrainer, but the bromide should never be left out altogether.
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