Having used Foma and Ilford I would go for the Ilford. As previously reported Foma films have poor reciprocity characteristics and I have found them to be "fussy" in processing. I use Pyrocat HD and found that I had to use distilled water to make up the working solution otherwise I can get blotches over even toned areas of sky. Ilford FP4 only needs filtered tap water. Also I rate Foma at ISO 50 whereas I rate Ilford FP4 at 100. Foma builds contrast quite rapidly I find that the compensating nature of Pyrocat helps tame it. In the right situation Foma does produce excellent images but Ilford FP4 is the more consistent of the two.
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