I think they are trying to reduce noticeable grain. Creating a smoother image.
John Forbes wrote:

Mike, you do talk rubbish at times. :-) The grain is NOT the photograph, in any practical sense. If it were, why would film manufacturers seek to reduce grain?

John

On Sun, 25 Sep 2005 22:44:19 +0100, mike wilson <[EMAIL PROTECTED]> wrote:

Godfrey DiGiorgi wrote:

 On Sep 25, 2005, at 9:14 AM, mike wilson wrote:

There comes a point in resolution when scanning film that all you're doing is resolving more emulsion defects too. At 2820ppi, I can see the grain clearly in ASA 100 film. Most of the benefit from 3000 ppi upwards is in grain imaging, rather than actual picture quality.



There's a contradiction in that last sentence.

  How so? Please explain.
I'm interested in seeing the photograph, not the grain.
 Godfrey

The grain is the photograph. Therefore, anything that improves the grain image improves the picture quality.

Hair splitting, I know, but I freely admit to being a pedant extraordinaire.

mike










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