Pyrocat M

Solution A
Distilled water 750ml
Metol 2.5g
Sodium Metabisulfite 10g
Pyrocatechin 50g
Phenidone 2g
Potassium Iodide 1g
Water to make (68 degrees F) 1000ml
Solution B
Distilled water 750ml
Potassium Carbonate 750g
Water to make (68 degrees F) 1000ml
Pyrocat M has a slightly different formulation than HD. A small amount of metol increases acutance and film speed slightly. This developer is recommended for rotary processing.