Digital BW, The Print

There was quite a flurry a few years ago in the astronomical
color imaging world when the CMY dichroics seemed like the
answer to the poor noise created by the RGBs. But, as the
amateur astrophotographers worked with both, the subtraction
processes required  to extract the RGB components negated any
gain from acquiring dual colors. 
There are some color CCDs that Do use a CMYG set.

Best,
Alex P


--- In DigitalBlackandWhiteThePrint@y..., "Austin Franklin" <darkroom@i...> wrote:
> Hi Tim,
> 
> I haven't really thought about that.  Obviously, you'd have to do color
> space conversion.  I remember a web article that outlined using CMYK, but it
> really doesn't give any detailed explanation:
> 
> http://www.digitalcameras.com/howTheyWork2.asp
> 
> I wish I knew more...and it is an interesting question.  I have a friend who
> is designing some consumer level digicams, and I'm sure he has people who
> work with him who could possibly answer that question, so I'll ask him.
> 
> If you find out anything, I'd like to know!  What I would do, is make a
> filter/lense that is a quad prism that takes ALL the info for that 2x2 area
> and gives it to each sensor...that way there is NO interpolating, and you
> have TRUE color information...but then you get 1/4th the number of "pixels"
> (I use that term loosely here ;-) that the cameras that use interpolation,
> give you.
> 
> Regards,
> 
> Austin
> 
> 
> > http://www.borderless-photos.de