120 FP4+ & Pyrocat-HD in Jobo processor

[SusanK]

Can someone give me a time/temp (in F please) that'll get me in the ballpark for processing FP4+ (EI - 64) in Pyrocat-HD....? I've read a lot of conflicting information recently and don't know where to start. I'm shooting 120 roll film and enlarging the images on Agfa multi-contrast paper.

I've heard everything from 6.5 min. to 9.5 min. And Sandy's site says use 70% of the time you would process in PMK. I did my FP4+ in PMK for 9.5 min. @ 68 degrees. So, would that make the P-cat 6.5 min. at 68 degrees, 1:1:100 ?

Also, the two rolls that I shot last night were lake shore (moving water, boats, etc.) exposures of anywhere from 30 seconds to the longest of 8 min. Do I need to knock off some more time due to reciprocity blasting the highlights?

I just don't want to toast my film on the first try w/ a new developer. Any ballpark suggestion is greatly appreciated.

SusanK

 

[Jim Noel]

My first teial of Pyrocat HD was with FP4+ in a Jobo at the slowest possible rotation. I exposed the film at an EI of 100, not 64. It was developed at 7o degrees F for 6 1/2 minutes and thenegatives are beautiful. You r1.3 of a stop more exposure should present no real problems.

Jim

 

[Jim Noel]

That should read 1/3 of a stop overexposure.

 

[Richard Wasserman]

I use a Jobo with an Expert drum for 4x5 FP4 and use Pyrocat at 1.5:1.5:100 because it oxidizes fairly rapidly with the constant agitation. I develop from 6.5 minutes to 10 minutes depending on the light. I just did a project where my exposures were in the minutes (the scenes were fairly contrasty) and 6.5 minutes worked well for me. Pyrocat and FP4 are a great combination.

Richard Wasserman

 

[lee]

I shoot fp4 at ie 64 and use pyrocat 2+2+100 for 8.5 minutes in a rotory processor for normal development. 68f

lee\c

 

[noseoil]

For highlight control, you might think about using minimal agitation or stand development instead of a rotary process. This will tend to have better highlight control and boost shadows a bit better. You will need to work out numbers, but it will give somewhat better results. Rotary processing works very well, but the other schemes will be sharper and easier when contrast control comes into play. Trade off is longer times and more tinkering to get things just right. Best, tim

 

[fhovie]

amen

For highlight control, you might think about using minimal agitation or stand development instead of a rotary process. This will tend to have better highlight control and boost shadows a bit better. You will need to work out numbers, but it will give somewhat better results. Rotary processing works very well, but the other schemes will be sharper and easier when contrast control comes into play. Trade off is longer times and more tinkering to get things just right. Best, tim