RE: filmscanners: Nikon Scan & VS Negative dynamic range

["Austin Franklin" <darkroom@ix.netcom.com>]

> > That is just not true.  F-stops are relative to the film, NOT to the
> > scanner.  You can expand the exposure range on the film through
> exposure
> > and
> > development.
>
> PLEASE read the archives. You can express the range DMin-Dmax as F-stops,
> or as a log value (1 stop=~0.3)
>
> Regards
>
> Tony Sleep

Tony, perhaps you are not understanding my point.  The number of stops you
captured on film had NO relationship to the dynamic range of the scanner.
That's basic.  I can have the EXACT same dynamic range in the scanner, yet
have one film/exposure/development that covers 5 f-stops, and one
film/exposure/development that covers 7 f-stops.  This is because the film
it self will both have the same dMin and dMax, but will contain more/less
exposure latitude.

I completely understand the relation between f-stops and dynamic range, but
I believe it is erroneous and misleading to express the dynamic range of a
scanner in f-stops.