PyrocatHD - how much stock for 4x5 film

[Jan_6568]

I wonder how much PyrocatHD stock solution I need for one 4x5 sheet. I had some FP4 which developed with lower EFS in dilluted Pyrocat and I guess one of the reasons could be that there was not enough developer in the tube. I am using Formulary's Pyrocat in liquid form. Any help will be greatly appreciated.

Jan

[Bruce Osgood]

Sandy King in his numerous writings says 75mL per each 4X5 neg

[Jan_6568]

Sandy King in his numerous writings says 75mL per each 4X5 neg
Bruce, do you mean 75 ml of 1+1+100 dilution?

Jan

[Bruce Osgood]

Bruce, do you mean 75 ml of 1+1+100 dilution?

Jan

Yes. Although I don't feel comfortable with that little. I use a simple 100 ml tray or Jobo.

I just noticed you are using tubes which suggests rolling. If you are using something with two speeds he suggests using the slower speed. If you do not have a slower speed such as my Jobo @ 78 rpm he suggests using 1.3+1+100 to compensate for oxidation occuring with fast speeds.

Good luck, also you can check out his article in Unblinking Eye.

[Jan_6568]

Thank you, Bruce

Jan