RE: filmscanners: 35mm film versus medium-format scan quality (Epson 2450)

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

> Dare I say it, but the mistake here might be the belief that a 4000dpi
> scanner is actually capable of 4000dpi scans (or "samples per inch", if we
> want to reduce confusion).
>
> Anyone got any hard evidence of the *actual* resolving power of these
> scanners?
>
> Jawed

Hi Jawed,

I don't quite know what you mean.  The physical sensor IS 4000 sensors per
inch.  The lenses used SHOULD be capable of resolving to beyond that....so
yes, the physical scanner IS capable of resolving to 1/4000th of an
inch...but...as Nyquist pointed out, and I reiterated in the previous post,
that will only GUARANTEE resolving to slightly under 1/2000th of an
inch...at a minimum, and of course, you MAY resolve some things to
1/4000th...

Regards,

Austin