Archived posting to the Leica Users Group, 2002/04/03

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Subject: RE: [Leica] X3 Chip - End of Conventional Film?? (Off-Topic)
From: "Austin Franklin" <>
Date: Wed, 3 Apr 2002 16:14:31 -0500

> >> Anybody heard of the new X3 chip to be used in the
> >> future digital cameras?
> >
> > Well, the X3 has been press released for some time
> now...whether it's "in
> > the future" is another issue...
> The Foveon chip (X3) is an interesting idea but as Austin has pointed out
> elsewhere it essentially improves chrominance data rather than luminance
> data. But it is luminance contrast that our eyes read as 'sharpness'.
> Undoubtedly if it actually works as claimed the Foveon chip could improve
> image quality over the normal RGB masked CCD. However it remains
> to be seen
> how noisy the signal from the lower layers in the pixel array is.

Johnny, you put that absolutely perfectly!

> The Foveon site has a lot of information about the chip, but beware of the
> comparison photos, since no information is given about what the
> foveon chip
> is being compared *with*.

Ain't that the truth!  All the "problems" they claim Bayer pattern CCDs
have, haven't existed for years.  Makes, to me anyway, their claims rather
dubious...why they had to make up problems just to claim they solved them...


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