[filmscanners] Re: CS 5000 ED vs. Minolta ???

["Arthur Entlich" <artistik@shaw.ca>]

Oh well, back to this again...

The problem, as you stated, is depth of field.  The answer has been cold
cathode lighting which can be rather bright.  I had both a Minota Dimage
Scan II and I stilll have a SS4000 Polaroid, and with both, one needed a
rather badly warped film to have focusing problems.  I never have needed
to use glass carriers or special mounts to get good sharp images across
the full surface.


The problem has been and continues to be use of LED lighting sources,
which do not have adequate light output to use stopped down apertures.

Art




wbgilloolyjr@charter.net wrote:

> The truth is you shouldn't be trying to scan slides in their original
> cardboard mounts.  They should be either remounted in glass or a high
> quality glassless mount (Wess or Gepe) that will hold the film flat.
>
> No amount of autofocusing is ever going to bring the center and the
> edges into optimal focus if the film isn't flat.
>
> If the lights on these scanners were brighter, the lens could use a
> smaller aperture which would help, but that's the realm of professional
> scanners.
>
> Mr. Bill
>
>
> Laurie Solomon wrote:
>
>>So Mike what you are saying is that unless the Nikon has a manual focus like
>>the Minolta does the problem is not correctable with the Nikon scanner but
>>is correctable with the Minolta; but both scanners have the problem under
>>the autofocus option.
>
>
>

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