Only if the filters are perfect, which they are not.  The blue and green sensors will 
see some red light, but at a much lower intensity than the red sensors. The Bayer 
algorithm is to some degree able to use this data in building the image.

DagT

> 
> Fra: mishka <[EMAIL PROTECTED]>
> 
> my example was about camera with a red filter on. in that case,
> you do lose 2/3 of data (as all green and blue pixels will be just 
> black). 
> or, equivalently, taking only red channel in photoshop.
> of course, this is a border case.
> 
> mishka
> 
> > This of course doesn't mean that taking a B&W photo on a 6MP camera  
> > results in a 2MP file.  You still record all channels and the camera  
> > creates a 6MP file.
> 
> 
> 
> 

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