[filmscanners] RE: Difficult scan problem

["michael shaffer" <michael@shaffer.net>]

Rob writes ...

> The negs are taken through a microscope and are of rocks.
> Some or every second one has been lit by fluorescence light
> source and the base colour comes out a golden yellow and
> the other colours are sort of fluro greens, greens to blacks.
>
> When the scans are done either in Nikon Scan or Vuescan they come
> out towards magenta tones.
> ...

  Most likely a white balance problem, and the fact neither software can
properly determine the "color of white" for a microscope illuminated
subject.  What Maris suggests should work ... that is, Vuescan's advanced
techniques should allow you to color correct a normal negative ... fix the
"mask correction", and then fix the "color correction".  These settings
could then be used to scan the problem negs.

cheerios ... shAf  :o)
Avalon Peninsula, Newfoundland
www.micro-investigations.com (in progress)

----------------------------------------------------------------------------------------
Unsubscribe by mail to listserver@halftone.co.uk, with 'unsubscribe 
filmscanners'
or 'unsubscribe filmscanners_digest' (as appropriate) in the message title or 
body