Douglas Newman wrote:
> 
> Actually, it's the opposite. CMOS use much less power
> than CCD but they have higher noise levels.

ok....

> 
> Canon CMOS have very low noise levels because of a
> proprietary "noise elimination circuit" that is
> patented by Canon. This type of technology only works
> with CMOS (because of the way the data gets off the
> sensor in a CMOS as opposed to CCD) but anyhow it is
> proprietary, patented technology that nobody else can
> touch.

ok....

> 
> the only other large-sensor CMOS cameras
> are the Nikon D2X/D2Xs and the Sony DSC-R1. Both have
> quite high noise levels given the size of their
> sensors. 

I think this is a case of pixel density.  The Nikon D2X is 12MP on an 
APS sensor and the Sony is 10MP on a smaller-than-APS sensor.  And 
actually I have not heard of poor noise performance with the D2X(s), on 
the contrary, I've heard people praise it.

-- 

Christian
http://photography.skofteland.net

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