--- Rob Studdert <[EMAIL PROTECTED]> wrote: 

> 
> I did some tests myself when Fred first posed the
> problem which may counter 
> that theory (for the *ist D ). I loaded my *ist D up
> with near discharged Ni-MH 
> cells, put in my micro-drive, switched on AF, popped
> up the flash and started 
> machine gunning at ISO3200. Not one frame contained
> signs of banding. I agree 
> that the cause is likely a power supply issue but I
> was very surprised just how 
> immune my *ist D was to any kind of power supply
> modulation. Maybe the *ist DS 
> is worse in this regard?
> 
> 

But did you try underexposing 1.5-2 stops at 3200?
That's when I see the banding appear on a 20D (not
machine-gunning and using CF)

Wendy

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