Digital BW, The Print

> >>>Surely every pixel on a digital camera (except
> >>>for a few exotica) is interpolated?
> >>>
> >>>
> >>No.
> >>
> >>
> >
> >YES.
> >
> >
>
> Not just "exotica" anymore --  the CCD in the Sigma is the Foveon chip..
> It reads red green and blue in each sensor well.  So, no interpolation,
> and no need for color filters to do it.. That chip has three layers of
> substrate, so each well measures one color at each level.. It doe NOT
> use a Bayer pattern..

Yes, I know the Foveon chip VERY well, thanks...but you can't buy a camera
with this chip at this time...as far as I know.  Also, the quality of the
images from it, and the ability to actually produce it, has yet to be
honestly tested.

> There is a HUGE processing saving (and that means in time as well)
> because no interpolation is necessary..

It isn't that big a deal...in fact, it is easily done in hardware, and the
cost is very minimal.  I've developed some hardware interpolation filters...

> It should avoid the vast
> majority of moir\ufffd issues as well..

There is no moir\ufffd issue with current Bayer pattern digicams.  That's a
problem that has been done away with a long time ago...  That's merely
Foveon hype.  It's like selling rubber tyres today, and comparing them to
wooden wagon wheels... ;-)

Regards,

Austin