Help with experimental roll (FP4+ underexposed at 2000)

Please help with developing an experimental roll of Ilford FP4+ 35mm film, underexposed by 4 stops (ISO set to 2000). I decided to use Xtol 1:1 to soup this roll. The times quoted below are from the Massive Dev Chart.

Here we go:

Xtol 1:1 @ 20*C (FP4+ underexposed 4 stops [ISO 2000])


As you can see, I am guessing with ISO 2000 because the Dev Chart only goes to ISO 1000. It increments the time (see "Increment") in a certain pattern that makes me conclude that ISO 2000 would be best souped for either 21 or 21.5 minutes, but I also realize that such severe underexposure may require a radically longer development time and non-standard agitation technique.

I will appreciate your thoughts and comments on this.

I was able to salvage a roll shot at 1250 with microphen for about 17 minutes. I think it was undiluted, check the FP4 info on the ilford site, it should give the details.

Good luck, I shot a roll at 1600 and tried to salvage it in xtol, and it hardly worked. I think I underdeveloped it- I could hardly enlarge it without the shadows compressing to a solid black.

Jadedoto said:

Good luck, I shot a roll at 1600 and tried to salvage it in xtol, and it hardly worked. I think I underdeveloped it- I could hardly enlarge it without the shadows compressing to a solid black.

Click to expand...

You are talking Major Push. Rodinal, 1:100, agitate every 30 sec. for 5 sec for 5 min, then let sit (yes, that is sit) with no agitation for 60 min, drain, stop, fix as usual.

XTOL is definitely the wrong developer for this job, You need something more active.

I know this is taking without giving as I can't help with the information you need but I am curious as to what has decided you to attempt this as an experiment and what you think may emerge. I hope this doesn't sound like a put-down. It isn't meant to be. Just genuine curiosity.

pentaxuser

I would agree with AgCl4ever, try (semi-)stand development in dilluted Rodinal.

(I've shot HP5+ at 3200, developed in R09 1:40 for 55 minutes with good results. Some people say R09 1:40 is equivalent to Rodinal 1:50, some disagree, but give a dilluted Rodinal a try)...