[filmscanners] Re: Scan quality - Vuescan versus Nikon Control 2.2

["Anthony J. Terlecki" <ajt@mrps.demon.co.uk>]

On Thu, Feb 07, 2002 at 02:47:58PM -0500, Richard Piotrowski wrote:
> As an introduction to digital photography I bought the used LS-20 scanner
> and played with it using Vuescan and Nikon scanning software.
> I like the color balance of Vuescan, but I have noticed, that Nikon Control
> 2.2 gives me much better results on the areas with one color (like the sky)
> and progressing density.
> With Vuescan it looks like scanning with less bits, it is more grainy and
> transition from darker to lighter areas is unpleasant.
> Am I doing something wrong or is it a normal behavior of Vuescan?
> I am scanning at 2700 dpi and 24 bits.
>
> Any help will be appreciated.
>
> Regards, Richard
>

It will differ from scanner to scanner what Vuescan can do. I had an LS-20
and I emailed Ed specifically about the problems you are seeing. He replied
that he had only access to 8 bits of information from the LS-20 so couldn't
do much to help. The Nikon software seems to access 12 bits internally and
only outputs to 8 bits after you have done any gamma or curves moves within
the software. With so few bits available that gives the Nikon software a
huge advantage.

Certainly with my LS4000 Vuescan can access the full capabilities of the
scanner and I belivee this is actually the case with the majority of scanners
which Vuescan supports.

--
Tony Terlecki
ajt@mrps.demon.co.uk

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