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- Water 750 ml
- Amm. Persulfate 25 g
- Water to make 1.0 L
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| One or two drops of sulphuric acid should be
added to the mixed solution to insure consistent action. The negative should
be removed from the reducer just before reduction is completed and then
rinsed with a 5% solution of Sodium Sulphite to stop the action, then a
final wash. |
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July 2024 Several books, featuring Christopher John Ball's photographs, are now available through Amazon or click on an image below to purchase via secure payments on lulu.com
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