Digital BW, The Print

Like I've mentioned before I believe it's a myth that yellow causes 
metamerism. There has never been any proof that this is actually the 
case. People just assume that since QTR and Imageprint profiles don't 
use yellow and don't have metamerism, the yellow must be the cause of 
metamerism.

The culprit actually seems to be either the cyan or magenta inks, it's 
just that QTR and Imageprint profiles uses so little of those inks that 
it's no longer noticable. In comparison the Epson driver uses liberal 
amounts of all the color inks when printing BW.

--
Daniel Staver
http://daniel.staver.no


ccolbertbw wrote:
> 
> I am getting a very strong itch to switch to PKN and LKN, for
> neutraility, for dmax, and for  the price. However, I do
>  need to maintain the ability to print in color.
> 
> I am generally happy with the Atkinson profiles. Obviously, I won't
> be using those, but will   make profiles with an eye-one.
> 
> Has anyone tried this already?  I would guess that the more neutral
> black inks will mean  that the overall shift in ink will be towards 
> yellow. In other words, there may be more  yellow ink laydown to 
> warm the cooler blacks. Perhaps there won't be much 
> additional yellow needed, but the idea of using a lot more yellow
> seems like it could add  to metamerism, if yellow is truly the 
> culprit there. Thus, the concern and the question.
> 
> On the other hand, maybe the more neutral Ks will make the
> linearization easier.