Archived posting to the Leica Users Group, 2006/01/17
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]> Everything was developed in Xtol 1+3 with > 3g/L additional isoascorbate. The main problem I experienced with these was > that try as I might, I cannot get Neopan 1600 to have adequate density or > shadow detail when shot at 1600. N1600, P3200 and Delta 3200 will never test out at the rated speed. They are all designed to be pushed sot hat the midtones can be elevated, but that's all. If you look at the literature, N1600 et al are made to be developed to a CI of 0.60-0.70 or greater where normal film (Tri-X, N400, TMX,Y etc) have and optimal CI of 0.50-0.55. Higher CI means higher contrast (read no shadows) while low CI means better or fuller shadows. This is as applies to 35mm only as the situation changes dramatically with larger formats. BTW, where did you get the trick with adding more vitamin C? Normal 1+3 Xtol would have 3g/L ascorbate so you doubled it without increasing the dimezone-S any. PH might go down some (better grain, slower activity). Reply off list if you wish as this seems to have no pixel content ;-) JB