On Tue, Dec 16, 2003 at 06:27:38PM -0600, William Robb wrote:
> From: "Pieter Nagel"
> > Oh, I wasn't hoping to get any more quality out of the tiny APS sensor
> > with 2/3 faked colour.
>
> I presume you have an ist D?
> If so, you know how wrong this statement is.
I did not mean that as a slur on the istD specifically, I was referring to
the difference between film & current CCD's in general.
Specifically, I was referring to the fact that each pixel of the CCD has a
red, green or blue filter and can detect only one of the three, the other
two need to be interpolated, ergo. "2/3 faked colour".
I do not ascribe mystical properties to digital imaging algorithms just
because "digital" is supposedly always "better" than "analog". Therefore,
even though I concede that the interpolation of the colours might in
practice work fine, I do not for any moment believe that the interpolation
algorithm can always end up with the colour value the pixel would have had
if it had been able to sense the other two colours.
Yes, I have an istD, and I am quite happy with the colour - although I
must add that I have only had it for a few days now.
But I can't help wondering (as a theoretical curiosity) how much better
the colour rendition would be if each pixel could sense red, green and
blue simultaneously. Users of a Foveon chip could comment.
--
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