kevin_on_man_lee Posted December 18, 1997 Share Posted December 18, 1997 Is it true that the effective speed of Delta is slower than the speed stated on the box? If so, why is that? And what should I rate with Delta 400? I use Ilford a lot about ten years ago and get frustrated with the speed, it was "a lot" too slow than recommended. Do Tmax400 have the same problem? Link to comment Share on other sites More sharing options...
tim_brown Posted December 18, 1997 Share Posted December 18, 1997 You really have to experiment to find the EI that works for your equipment and shooting/developing style. FWIW I get the rated speed with Delta 100 and 400 developed in Xtol diluted 1:3 about 10% longer than Kodak recommends and printed with a dichroic (diffuse) enlarger. Link to comment Share on other sites More sharing options...
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