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RE: filmscanners: Supra 400 shadows

On Wed, 1 Aug 2001 11:44:30 -0700   Paul Chefurka 
(Paul_Chefurka@pmc-sierra.com) wrote:

> I have the exact same problem with Supra 400 - red and green speckles in 
> the shadows.  Like you, I can't get them to disappear without blowing 
> away a lot of shadow detail.  I don't know if a drum scan would solve 
> this or not - I've seen the same problem on both my SS4000 and my new 
> LS-4000, so I have my doubts.

This is likely to be grain aliasing. Where exposure is slight, there aren't 
many dye clouds (grains), and if they are of a size to alias individual 
pixels or small groups, false colour is the outcome.


Tony Sleep
http://www.halftone.co.uk - Online portfolio & exhibit; + film scanner info 
& comparisons


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