Hi Harvey--
So according to your summary of the discussion on the ColorSync list
they decided that the artifacts being discussed were caused by
scanner noise in dense areas. Certainly a well-known phenomenon. I
on the other hand was referring to an instance where I caught myself
erroneously attributing the effects of film grain to scanner noise.
As far as I can tell we were talking about two different things.
--Bill
>At 1:39 PM -0400 23-10-01, SKID Photography wrote:
>
>The threads on the colorsync list...
>The consensus of most was that the grain that was showing up in the
>dense shadows from the greater
enlargements (samples) was due to the problem of electronic noise,
and not, in fact grain...
>Bill Fernandez wrote:
>...I couldn't understand why
> > two targets of equal density on the same scanner could be so
>> different; until I inspected both scans closely and realized that the
>> 25mm target was hugely grainy, especially in the dense end of the
>> greyscale. So what at first I thought was scanner noise turned out
> > to be film grain.
--
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Bill Fernandez * User Interface Architect * Bill Fernandez Design
(505) 346-3080 * bill_sub@billfernandez.com *
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