Digital BW, The Print

> Martin Wesley wrote:
> > 8-bit color is fine because you really have
> > 24-bits of data to push around.
> 
> All other facts and misinformation aside, here is a bit of information 
> which should give you pause:  8 bits per channel of RGB data gives you 
> (only) 9 bits of lightness (black & white) information.
> 
> -Jon Dubovsky ( entropy@... )

Jon,

Please explain the basis for this claim.

Regards,

Austin