Hi Gang................ After the theft of my camera equipment a few weeks ago I purchased a refurbished Nikon D90 a Tamron 18-200mm lens and a Sunpak pz42x flash. (fortunately the thieves didn't touch any of my Studio equipment) I have looked on some of the Nikon forums and don't see anywhere where this question has come up.............. On page 237 of the Users Manual it states............ iTTL flash control can be uses at ISO's between 200-3200 It mentions that desires results may not be as expected when using 3200. The Nikon D90 can also be set at ISO 100 and 6400. Does this mean that the iTTL flash control will not work if I lower the ISO sensitivity to ISO 100? That seems rather strange? Thanks Russ
