Digital BW, The Print

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. 

I wonder if that also explains the apparent exageration of  grain and  dots that we occasionally see with the 3MK 1800 workflow.

Paul
www.PaulRoark.com