Digital BW, The Print

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "tbonanno2004" 
<tony@y...> wrote:
> Marzenna,
> 
> I have been using the Fred Miranda PS actions (digital B&W Pro) 
and 
> find them useful when using the full inkset in my 2200.  I 
> particularly like the gold/burgundy tritone action.  
Unfortunately, 
> there is still the metamerism problem with the 2200 inkset.  I 
think 
> his sepia actions and custom tweaks are probably a little less 
> problematic regarding the metamerism.

I'll respectfully submit this is probably wishful thinking, rather 
than something inherent about Fred's B&W action. 

The metamerism results from the wildly nonlinear nature of the 
Ultrachrome inks and the combination of CcMmYKk the Epson driver 
selects.

ImagePrint RIP virtually eliminates metamerism with B&W images by 
avoiding combinations of CcMmYKk that are likely to metamerize. With 
color images, it uses different profiles for daylight, tungsten, and 
fluorescent because there just is no way to eliminate the metamerism 
entirely.

You'd need something more sophisticated than an action to pull off 
what ImagePrint accomplishes, since it's the choices by the Epson 
driver that are a large part of the problem, and you're still using 
the Epson driver with Fred's action.

You probably notice less metamerism with duotones and tritones 
because those specific combinations of ink may be less likely to 
metamerize.

Metamerism is not a constant for every image. Its effects can easily 
vary from one image to the next, because the combinations of ink 
selected by the driver to represent various colors and grayscale 
shades vary considrably.

Cheers,

Mitch