Response to Adding Amidol to PMK Pyro

It doesn't take much. I routinely add .05 grams amidol to the 500ml of PMK solution I use for a roll of 120 film. I'd say 1/10 gram is a little pile that wouldn't quite cover a dime. I'm guessing that a level 1/4 teaspoon is about 4 times too much (i.e., about 4/10ths gram), but that's just a guess. At some point you may wish to be more precise in your measurement, and I recommend a powder scale that reloaders use for weighing gunpowder--they are extremely accurate and cost less than $50. You might even find one on e-Bay. In the case of amidol, less is probably more, as increasing quantities beyond 1/10 gram per liter of working solution merely increases base fog without any additional speed increase.

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