Crawley's FX-37 Share on Tumblr Tweet Water 750.0ml Sod. Sulphite 70 g Phenidone 0.5 g Hydroquinone 5.0 g Sod. Carbonate 5.0 g Borax 2.5 g Pot. Bromide 0.5 g Benzotriazole 1% 5 ml Water to make 1.0 litre Dilute 1:3 for acutance or 1:5 for speed. Return to Formulae Contents 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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