Ewesly / Holographic Formulae / Nick's No. 5
60 g Sodium Sulfite
20 g Catechol
10 g Hydroquinone
10 g Potassium Bromide
One litre water
20 g Sodium Metaborate
120 g Sodium Carbonate
One liter water
Mix equal parts together before use.
Four to five minutes
Temperature: 23C +- 1C Agitation: Constant
for transmission holograms on Ilford green-sensitive materials, followed by a rehalogenating-diffusing bleach. Properly exposed plates will wait thirty seconds before showing signs of development.
Part A can last a month in a tightly stoppered bottle; Part B can last indefinitely. The combined solutions can last a day in a covered tray.