[filmscanners] Re: [filmscanners_Digest] filmscanners Digest forFri 4 Apr, 2003

["Arthur Entlich" <artistic-1@shaw.ca>]

Hi Barry,

I would suggest that full quoting is not often required, and can
sometimes prove excessive.  I usually suggest people quote enough of the
original that the reader knows the references.

According to Canon the scanner uses: Cold cathode mercury fluorescent lamp

This would tend to be a diffused light source, but as I posted earlier,
Minolta also used such a lighting source but somehow manages to make it
overly directional, perhaps through the use of some condenser lenses???

I do not recall the FS4000 being saddled with a reputation for excessive
  grain or scratches when FARE is not used.  It's main problems are with
the speed it scans and shadow noise.

Art



barry wrote:

>
>
> Thanks Art
>
>
> Is the Canon FS4000 the cold cathode tube type?. I do not remember the specs
> of the scanners I looked at (briefly) indicating the type of light source is
> used. Is the Nikon the only one to use a collimated light source?
>
> regards
>
> Barry T
>
>

> From: Arthur Entlich <artistic-1@shaw.ca>
> ----------------------------------------
> Hi Barry,
>
> The answer is "it is, and it does".
>
>
> It is like the condenser versus diffusion debate (almost exactly), and
> it does make a difference.
>
> Overall cold cathode tubes lighting provides a diffuse light source.
> The exception appears to be Minolta scanners, which seem to need an
> auxiliary defuser.  And in fact, that scanner series may be the perfect
> example of the problem.

[...]

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