JB> Some TTL-flashes don't work right with the *ist D/*ist DS, in my experience JB> especially those with a red AF assist light. JB> My AF280T works fine with the *ist D, perhaps with a small tendency towards JB> overexposure (less than ˝ stop off). At 200-400ASA most TTL flashes work all JB> right. If you’re shooting at 1600ASA, you may get excessive over exposure, JB> though.
I am having problems with AF400FTZ on *ist DS. It either overexposes when the subject is near or underexposes if the subject is far. I am not sure if I wasn't over the 400 ISO when I did the shooting, as it might have gone up to 1600 by the auto sensitivity correction. The exposure errors were very bad though. I had to dial -2 for FEC to get appropriate exposure. Though it might be that the flash is faulty. Will try the flash on somebodies else digital, see what happens. Girts Riga, Latvia