Archived posting to the Leica Users Group, 2001/07/18

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Subject: Re: [Leica] Re: scanning B&W: salt and pepper appearance
From: John Collier <jbcollier@powersurfr.com>
Date: Wed, 18 Jul 2001 20:00:57 -0600

Here is another take on the salt and pepper:

http://www.photoscientia.co.uk/Grain.htm

John Collier

> From: "Mark E Davison" <dmark8@qwest.net>
> 
> I tracked down the origin of the salt-and-pepper texture I was seeing. It
> results from trying to use unsharp masking to resolve the grain and recover
> the acuity of the B&W image. Basically with the Nikon LS-2000 at 2700 dpi
> you hit the salt and pepper before you satisfactorily recover the grain. For
> me its especially acute with Neopan 1600.
> 
> Here's an example:
> 
> http://www.photo.net/photodb/photo?photo_id=278487&size=lg
>