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Diafine Developer is usable over a wide temperature range with one developing time for all films.
Fast, medium and slow films can be developed simultaneously without adjustment in developing time.
Diafine is unsurpassed in it ability to produce the greatest effective film speed, ultra-fine grain, maximum acutance and highest resolution.Time and temperature have no practical effect if the minimum recommendations are observed. Diafine is an ultra-fine grain developer with the highest effective speeds.