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     áòèé÷ :: Filmscanners
Filmscanners mailing list archive (filmscanners@halftone.co.uk)

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[filmscanners] RE: Pixels and Prints



Hi David,

> Then there's the reality check of actually looking at film scans and
> actually looking at some digital camera images and seeing how
> they compare.
>
> If one actually did that, one would see that, on a pixel-for-pixel basis
> (that is, comparing the same number of pixels), film scans are incredibly
> poor, being soft and noisy. As I mentioned before, downsampling 4000 dpi
> scans of Fuji "100F" slides to 60% results in images that are beginning to
> be similar quality to digital camera originals.

That depends on a LOT of things.  The film, the development and the scanner.
I have seen extreme differences between high end film, excellent
exposure/development and using a very good scanner...much less a high end
scanner...vs...most decent films scanned on a con/prosumer based scanner.

I have compared scans from my scanner (Leaf45, which scans 35mm at 5080) and
different digital cameras (Leaf Lumina, which is a TRUE RGB digital camera
in that it gives %100 of the color information per pixel...as well as D30,
D60, Hasselblad digital backs etc.  The ONLY digital cameras that come close
to my best film scans are the 7k x 7k Hasselblad scanning back (which
actually beats most film, but is useless in the real world only in the
studio) and the Lumina comes close, but not quite (which is a 2k x 3k
scanning camera).

The others, though good, simply don't compare to a high end film scan.  Then
there is the issue of the Bayer pattern fidelity...even though the digicam
images look "sharper", sharpness is not the only criteria for an image.  In
fact, it is typically a false indicator IMO.  Though, some people believe it
"looks" good, in fact, it really has nothing to do with image fidelity.  A
two pixel camera will give you a sharp image...

I don't think the generalizations I've seen here are valid as
generalizations.  Certainly, what you see is what you see, but that doesn't
mean it holds true for all situations.  Because one uses a Holga, doesn't
mean all medium format images are no better than the images from an SX-70
;-)

Regards,

Austin

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