Ian Grant
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(there was a url link here which no longer exists) - High Acutance Develper
(there was a url link here which no longer exists)
(there was a url link here which no longer exists) - High Acutance Develper
In his book "Photographic Processing Chemistry" (1974 Focal Press), L.F.A. Mason lists a typical High Acutance Developer.
This may possibly be the formula for Hyfin, which was Ilford's High Acutance developer, available from 1961 until the early 1970's. Mason calls it a typical formula:
High Acutance Developer
Metol 0.5g
Sodium Sulphite (anhyd) 5g
Sodium Carbonate (anhyd) 5g
Water to 1 litre
Development times 15-25 minutes
Requires a minimum of 600ml of chemistry per 35mm or...
(there was a url link here which no longer exists)
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