Rayco Ultra Fine-Grain B&W Negative Developer.

Rayco Ultra Fine-Grain B&W Negative Developer.

  1. Keith Tapscott.
    This formula is closely related to Geoffrey Crawley`s FX-9 and FX-10 developers and is published in a book called RAYCO REVEALS.

    Sodium Sulphite, anhydrous = 100 grams
    Hydroquinone = 6 grams
    CD-4 = 8 grams
    Borax = 4 grams
    Boric acid = 3...
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