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Digital BW, The Print

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Re: [Digital BW] Re: Shooting digital vs. film

2002-09-06 by Moreno Polloni

> > ...a hole in your theory, but even though the 8000 uses
> > LED's, the
> > light source is diffuse.
>
> Well, I'd argue that it's really diffuse...

Well, I'd argue that once you diffuse a light source, you have a diffused
light source.

> it's still point light...simply
> putting a diffuser over a point light source doesn't make it a diffuse
light
> source in the traditional sense, like a cold light...does it?

If you're talking about enlarger light sources, most of the diffuse light
sources use tungsten, not fluorescent illumination. I'd consider a cold
light more esoteric than traditional.

> > The grain is comparable to the Polaroid scanner,
> > which also has a diffuse light source.
> >
> > The Minolta, on the other hand, also has a diffuse light source, but has
a
> > severe grain problem on neg scans, while slide scans are quite decent.
>
> How do you explain that?

I don't, although I'd guess it's an aliasing issue. Perhaps only Minolta
knows what's going on (but then again, maybe not).

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