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RE: filmscanners: Profiling negative films

Ed writes ...

> michael@shaffer.net writes:
> > ...  Ed  may have more to say, but I believe his
> > evaluation of Q60 target results only in a
> >  matrix-type profile, which, generally is a
> > simplification of a device profile.
> As long as the sensor is linear, there's nothing that can even
> theoretically be more accurate than a 3x3 matrix transform.  This
> is what VueScan uses.
> ...

        Just to clarify ... does a simple "3x3 matrix" profile allow for the
capture of each R,G & B channel having a different "linearity"?

shAf  :o)


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