[filmscanners] RE: Why DSLR ouput looks sharper?

["Paul D. DeRocco" <pderocco@ix.netcom.com>]

> From: filmscanners_owner@halftone.co.uk
>
> What I want to know is:  which one will make a better 11x14 or
> 12x16" print?
> Looking at screen pixels is not the final product, even though it
> does tell
> us something.

If you resize the scanned image down to 6MP, then you can do meaningful
on-screen comparisons. However, there may be actual detail that's lost by
resizing in this manner (though I doubt there is much).

Beyond that, there are other differences between scanned slides and DSLR
images. I'm of the opinion that digital cameras generally have more accurate
color, because the chemical processes involved in film involve finicky
response curves that need to be canceled out by other equally finicky
curves, while what goes on in a CCD or CMOS sensor is pretty simple and
linear.

> I am especially interested in comparisons of prints made from the Sigma
> Fovion images versus the new Olympus E-1 DSLR versus scans of film.  Also,
> any other DSLR vs film scan prints.

The Foveon technology looks interesting, but their current implementation
doesn't have any diffuser over the sensor, which makes it appear sharper
than most competitive sensors, but it is prone to aliasing and moire.

--

Ciao,               Paul D. DeRocco
Paul                mailto:pderocco@ix.netcom.com

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