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[filmscanners] RE: Difficult scan problem
Anthony,
I have no arguments with what you suggest below and, in fact, agree with
you. However, you also missed a portion of the original post to which my
response was being made where an additional factor was entered into play.
Namely the slides/negatives were produced via a microscope which used
fluorescent lighting as its lighting source for the lighting stage. This
was really what I was referring to more than the lighting of the scanner or
a lighting table used after the fact to scan or examine the already exposed
and created film.
> -----Original Message-----
> From: filmscanners_owner@halftone.co.uk
> [mailto:filmscanners_owner@halftone.co.uk]On Behalf Of
> Anthony Atkielski
> Sent: Monday, April 15, 2002 12:48 PM
> To: laurie@advancenet.net
> Subject: [filmscanners] Re: Difficult scan problem
>
>
> Laurie writes:
>
> > It just occurred to me - rightly or wrongly
> > in this particualr case - that this problem
> > may be caused by the fluorescence light bringing
> > out colors that that the film is seeing which
> > the naked eye does not ...
>
> If that were true, the colors would not be visible when
> viewing the slides
> on a light table, either.
>
> If you see colors on the light table that aren't on the scan, and the
> scanner is correctly adjusted, chances are that your light table is
> producing frequencies of light that the scanner does not use,
> and the film
> is filtering these frequencies, such that you get a slightly
> different view
> of the slight on the light table than what the scanner sees. Neither
> perception is "right," just different from the other. I
> assume that the
> light sources on a scanner are better calibrated than an
> ordinary light
> table, but I'm not sure.
>
>
>
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