Filmscanners mailing list archive (filmscanners@halftone.co.uk)
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[filmscanners] RE: Scanner Profiling
Doug writes ...
> On Tue, 15 Jul 2003 21:00:04 -0230, michael shaffer wrote:
>
> > What difference does it make if the film is negative or positive?
> > All the scanner understands, and scans, is color ... the rest of
> > it is in software.
>
> Because the positives (slides) don't have a mask layer, and they all
> come out to colors that are directly viewable (perceivable), and they
> all come out in the same color space: that of the human eye. Negative
> films, however, do not. The (orange) mask layer is different from film
> to film, and must be subtracted out before the "mechanical" color
> inversion takes place.
You're confusing two issues ... the characteristics of film type (pos or
neg), versus color capabilities of the scanner (its profile).
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
|
