Pyrocat-P dilution for rotary processing

[lensmagic]

Would a practitioner developing TMY or TMX in Pyrocat-P using a Jobo (rotary) processor be advised to increase amount of the A solution by 30% as with Pyrocat-HD?

 

[waterlily]

Is there a reason to increase amount of A solution? I use 2:2:100 for TMY in the Jobo at the slowest speed. 11 minutes at 70 degrees. The negatives print fine for me. I contact print on Azo and enlarge on Forte from the same negatives.

 

[Bruce Osgood]

Is there a reason to increase amount of A solution? I use 2:2:100 for TMY in the Jobo at the slowest speed. 11 minutes at 70 degrees. The negatives print fine for me. I contact print on Azo and enlarge on Forte from the same negatives.

There you go. Not every Jobo has a slow speed. Mine, for example has but one speed - 78 rpm. For these fast speed rotations Sandy has suggested about 1/3 more A to compensate for the fast speed.

I would try a 30% increase in A if your processor only goes fast.