Fomapan 100 at ISO 400, time?

malias · Apr 17, 2025

Hi, I shot a 135mm roll of Fomapan 100 at ISO 400, I'm going to develop it with HC-110, what do you think is a good time?

miha · Apr 17, 2025

Twice the suggested time for EI 100. Expect high contrast negs.

ntenny · Apr 17, 2025

The Massive Dev Chart suggests dilution B for 11.5 minutes. I haven’t tried it myself, and I think it’s a pretty adventurous push—I would expect very high contrast and very little shadow detail, but for some images that could work.

-NT

loccdor · Apr 18, 2025

Haven't tried Foma 100 @ 400 but did try Foma 400 @ 1600 in D-76. It worked better than I thought it would.

If your scenes don't have a wide brightness range the film will be more forgiving of push. Also depends on what metering method you are using.

malias · Apr 18, 2025

Thank you all very much for your comments. I finally developed it this morning with HC-110 at 20.5ºC (I wasn't very good with the temperature today), so instead of the 11:30 minutes I had planned, I left it for 10:30 minutes. It seems to have turned out well. I let it dry, and in the afternoon I'll probably go down to look at it more closely, cut it, and maybe process some negatives. In any case, I'll upload something so you can see the results. Thanks!

pentaxuser · Apr 18, 2025

malias said:
Thank you all very much for your comments. I finally developed it this morning with HC-110 at 20.5ºC (I wasn't very good with the temperature today), so instead of the 11:30 minutes I had planned, I left it for 10:30 minutes. It seems to have turned out well. I let it dry, and in the afternoon I'll probably go down to look at it more closely, cut it, and maybe process some negatives. In any case, I'll upload something so you can see the results. Thanks!

Thanks that will be useful. I may have seen Foma 100 negs pushed to 400 but I cannot recall any so examples are always useful

pentaxuser

malias · Apr 18, 2025

A promise is a promise. The negatives are as they are; I've just modified the curve to show them as positive:

malias · Apr 18, 2025

I'm quite happy with the result, keeping in mind that most of the photos were taken at night... the noise is negligible. I developed with HC-110, 1/31, 20.5ºC for 10:30 minutes (not the 11:30 that massivedev indicated, because the developer was at a temperature of 20.5ºC instead of 20ºC, and I didn't have the patience to wait for it to cool down...)

malias · Apr 18, 2025

And since I was busy, I processed some on expired Ilford paper.

pentaxuser · Apr 18, 2025

malias said:
And since I was busy, I processed some on expired Ilford paper.

Thanks. So these are contact prints or enlarged prints made with an enlarger on expired Ilford darkroom paper?

pentaxuser

malias · Apr 18, 2025

pentaxuser said:
Thanks. So these are contact prints or enlarged prints made with an enlarger on expired Ilford darkroom paper?

pentaxu

They are with enlarger

miha · Apr 18, 2025

malias said:
And since I was busy, I processed some on expired Ilford paper.

Looks good, all things considered

koraks · Apr 19, 2025

malias said:
The negatives are as they are

As expected, most of them are severely underexposed. No amount of additional development will compensate for this. The outdoor shots are better exposed, which may be due to how you metered the scenes.

malias said:
the developer was at a temperature of 20.5ºC instead of 20ºC

That's not a difference you have to compensate for in practice in B&W development.

Fomapan 100 at ISO 400, time?

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