Hi, I have been looking at Barry Thornton's excellent web page and have performed th e speed test descibed there (summary: photograph grey card at zone I, bracket, p rint step wedge from blank frame to assess max black, match prints from brackete d zone I frames to max black) and found that I should be rating Ilford FP4+ at 2 /3 - 1 stop faster (ie: max 250 ASA).

Barry Thornton says that he has personally overseen hundreds fo these tests and all of them result in a lower ASA rating, typically from 125 to 64.

This has got me worried - have I done something wrong (I'm good at that) or has anyone else got a higher speed rating?

Neil