FP4+, Foma 100. Which is which.

A

Alan Clark

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These were taken with the same camera , same lens and developed in ID11 1+1. One is FP4+, and one Foma 100. Which is which?54210 shunner howe.jpg54211 shunner howe.jpg
 
I'm impressed. How did you guess, please ? Which aspect do you check to tell the difference ?
 
Francis R said:
I'm impressed. How did you guess, please ? Which aspect do you check to tell the difference ?
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For me, it was look & feel, primarily contrast.
It's considerably easier, all things being equal. ;)
 
I was thinking of getting some Fomapan 100, so good to see it compared to FP4. I heard it is better exposed at 80. I'll probably be developing it with 510 Pyro.
 
jhotopf said:
I was thinking of getting some Fomapan 100, so good to see it compared to FP4. I heard it is better exposed at 80. I'll probably be developing it with 510 Pyro.
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You'll have to test for yourself to see what works best. I typically expose Fomapan 100 at 64 ASA and often include a second sheet which gets another half stop more exposure. This is for development with either PMK or Thornton's Two Bath developers, both of which are known to result in slight loss of film speed. I sometimes use Xtol (or FX-55) and get similar results, exposing at 64 ASA.

But it all depends on how YOU like to work and what results you want. You need to do your own tests. That said, I find Fomapan 100 to be an excellent all-purpose film. It will give you a different look to FP4+: shadows drop off more quickly with less nuance, but that can be an asset.

If Fomapan has any fault, it's the shoulder: it rolls off conspicuously, so that very bright values don't have as much separation as they would on other films like TMY/TMX or Delta 100 or even FP4+. But if you are careful and avoid pushing brighter values too far up the curve, you can get some nice images out of it.
 
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