Digital BW, The Print

On 6/7/2010 2:23 PM, Paul wrote:
>
> Tony Sleep <TonySleep@...> wrote:
> >
> >
> > With CCD line or matrix scanners, lower optical PPI is likely to
> > exaggerate, not reduce grain, through grain aliasing.
> >
> > I believe I was the first person to describe this phenomenon, in 
> response
> > to a Polaroid technical inquiry c.1999 (they didn't understand why a
> > customer was seeing increased apparent grain with some materials).
> >
> > Grain aliasing was subsequently written up by Pete Andrews at
> > http://www.photoscientia.co.uk/Grain.htm
> > --
>
> That's interesting and may explain why my Tmax 100 scans with the 
> Nikon 8000 are sometimes disappointing in their apparent graininess.
>
It certainly could.  I routinely enable multi-pass scanning (4 passes) 
in NikonScan
with my LS9000, which helps considerably.

Dana



[Non-text portions of this message have been removed]