Fomapan 100 reciprocity failure and Xtol minimal agitation

[jumanji]

I've tried some Fomapan 100 and developed 3 sheets in Xtol last night. They came out very nice. Today I've just shot a scene with wide SBR. The shadow was metered at EV 1, and highlight at EV 7++. I decided to shoot at EV 2. At f32 it's 4 min, but I added some mins for reciprocity failure, so it's 10 min. Now after some google search about Fomapan 100 reciprocity failure, I think I underexposed it . Would it be that bad? Yes I know I should learn something about this film before shooting it the first time, but I was too excited...

Anyway I will develop it to see what will happen. Xtol minimal agitation (each 5 min), or even semi stand. My question is which dilution? Time? I use Paterson Orbital, and Xtol requires 100ml stock to cover one 8x10 sheet, so the maximum dilution possible would be about 1+5.

 

[Gerald C Koch]

Kodak no longer recommends using Xtol at any dilution higher than 1+1 due to the chance of inconsistent results.

 

[Xmas]

google

Formapan 100 classic datasheet

about 160 ISO Microphen 9 mins is resonable

 

[SebastianKrauss]

I'm not a big zone system user, but shooting at EV 2 means +3 stops, right? So you shot at 12 ASA.

I guess if you meter 4min foma would need around 1 hour! (my tech sheet ends at 100s) With your 10min you underexposed around 2,5 to 3 stops.

So in fact you have just taken a normal 100 ASA picture. With xtol 1+1 go for 9 minutes (regular agitation). Or give it 1 hour stand in Rodinal 1+100

(But this is just a pure guess)

Best
Sebastian

 

[jumanji]

Just developed it. Xtol 1+3, 21 degrees C, agitation first 15s, then 10s at min 3, 6, 10, 15. Ended at min 21. Looks great! Shadow has details, and with some careful dodge I can save them. I think putting the shadow on Zone IV at the begining did help me, and Xtol high dilution give me even some more speed. And probably Fomapan does not have that bad reciprocity failure. Actually in the first three shots, one is metered at 8s. I decided to shoot at 14s, and it came out nice. If I follow the chart on the internet, it would be 56s, i.e overexposed.