Make FP4, RPS and Plus-x similar

I have done testing of Ilford FP4+, Rollei Superpan 200 and Kodak Plus-x.

Reason: Kodak 120 Plus-x i discontinued, i like the film and will try to create dev-routines for other films to fill the gap. The test i did today showed that:

RPS @64 Iso in Hc110 Dil B for 5.30 seconds in handinverting tank was close.
Ilford @64 Iso in HC110 Dil B for 6 minutes in Handinverting tank was close
Plus-x was in same dillution @64 ISO for 5 minutes.

Then all of the film had density above basfog in Zone 0 and Zone V greycard and Colorchecker printed similar results on Foma 311 grade 2 filter.

Indeed, FP4+ is wonderful stuff. Seems to be most of what I use in MF these days, with fall and winter coming I expect HP5+ and Delta 3200 will be used more again.

I use FP-4 in my large format, and you test results are helpful. Thanks for the post!


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