Photographer's Formulary Amidol Paper Developer is regarded as one of the finest developers available. It produces rich, strong, black tones, which are slightly cool. Amidol works best on bromide paper where it produces a pleasing tonal range. Because of its unique developing qualities, amidol is the favorite developer of photographers who exhibit their prints.
Problems Associated with Amidol
It is toxic and expensive
It does not keep well in solution; Its useful life is about 8 hr
Amidol stains everything it comes into contact with, it is not pleasant to work with
