Using FP4+ and Rodinal

[david b]

I've gone through the archives and times and temps are all over the place.

I am looking to develop 4x5 sheets of FP4+ exposed at 125 in Rodinal 1+50 at 68 degrees.

I am using a Jobo 2521 tank.

So what are your times?

(the agfa pdf differs by 2 minutes from the ilford pdf)

 

[Ole]

I once found a 15 min time for that, and used that. It worked.

That's what I've got scribbled on the back of an envelope in the cupboard with my JOBO drums and spirals, at least...

 

[John Bartley]

The massive development chart at digitaltruth says for asa=125 and dilution=1+50, the time is 15 minutes. I'm pretty sure that I used their 1+25 dilution figure for time and the results were good, so I'd go with their 15 minutes

cheers

 

[gainer]

Sounds about right. AGFA shoots for a higher contrast than most of us would use for scenic photography. They like CI to be 0.65. We are more inclined toward 0.56. Rodinal at 1+50 does not build contrast very rapidly after about 10 minutes, so the difference between 15 and 16 minutes may hardly be noticable.

 

[rtuttle]

I found the recommended time for FP4 in Rodinal at 25:1 was way to long. I believe the time was 9 minutes and I found it to be more like 6.