Response to development times (exposed 125 @ 400 ASA)

Too damn late to help the enquirer I know, but for those in a similiar predicament I have successfully used another technique that offers least possibility for error. In my case FP4 and Tri-X have been processed with D76/ID11 as follows: Take the full strength solution and dilute 1+4 at 20C. Agitate continuously for the first TWO minutes and then leave untouched for five times the recommended development time at full strength. This can be 45 minutes, or longer! It is difficult to overdevelop because the undisturbed solution exhausts quite quickly in the most exposed areas whilst continuing to function in the underexposed parts. This technique does inevitably produce some degree of tone compression, but nothing, in my experience, which can't be effectively counteracted at the printing stage.

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