The liquid B&W negative film developer with exceptional sharpness and fine grain, good utilization of speed and constant contrast. These parameters can be held stable over a long period of time, due to the optimum oxidization protection.
Now called R09 Studio Film Developer, this is the exact same formulation as Agfa Studional.
Mixing instructions:
R09 Studio Film Developer is diluted with water at the ratio of 1 + 15 (= 1 part concentrate + 15 parts water). If the total quantity is not used, the plastic bottle should be squeezed after each use to prevent oxidization. It is, however, best to mix the total quantity and then fill in bottles.