Digital BW, The Print

I think the answer is simply that there is only a limited number of sensor 
manufacturers and they choose to use RGBG!

Canon have used CMYG filters (NOT CMY - a K filter would just be an ND!) in 
cameras like the Pro 70 and earlier compacts, and they have had very good 
quality for their class.

I think Kodak have also used CMYG in the past, although not currently AFAIK.

On Saturday 19 Jan 2002 6:31 pm, Tim Spragens wrote:
> Austin,
>
> can you explain why more companies aren't using CMYK filters instead
> of RGBG for single-chip cameras? Seems like there would be less light
> loss, and it would avoid the redundant G.
>
> Tim
>
> > The other issue that comes into play, is these one shot cameras aren't
> > really true pixels...they interpolate the color data, which makes them
> > really require 4x the number of sensors to give you TRUE color data.