Digital BW, The Print

As the effect I noticed is in the mid tones and does have that metallic bronze appearence 
from an angle, I suspect it was indeed extreme bronzing and not Metamerism.  Never ever 
seen it when printing with matte black, light black and QTR on Rag papers, only with the 
RC luster and Photo black.  I have really not seen much Metamerism with the Ultrachrome 
inks - certainly not like I noticed with the previous Epson Archival pigments such as used 
int the Epson 2000.  The third issue you mention is one I'm not sure I have noticed.   
Could it occur when, for example, one printed in Black Only mode and the result was a lot 
of actual white paper showing in the highlight areas.   


--- In DigitalBlackandWhiteThePrint@yahoogroups.com, Carolyn Frayn <carolyn@u...> 
wrote:
> On 2/20/05 12:32 PM, "john dean" sent the following verbage:
> 
> > 
> > Really? Well someone here is wrong......
> 
> > Anyone else like to
> > weigh in?
>  
> 
> Confusion of terms.
> 
> Three different issues, metamerism, bronzing and this one I believe Tariq is
> describing, where you are seeing more paper, less ink, therefore a different
> look to the print in lighter areas... which I don't have a name for, but I'm
> sure someone does.  You don't see this effect with rag papers, the matte
> paper and matte black ink appearance are similar and lovely. With glossy
> paper, it's a difference in ink density being laid down, you see more paper
> surface with less ink, so areas of lighter values have a different sheen...
> The paper sheen vs the ink.
> 
> I often read people calling both issues bronzing. Bronzing is seeing the
> darker inks turn bronze in color when viewed at different angles. The other
> is almost like a knock out of the print areas where there is total white
> (paper)... Or lighter values causing a different look to the printed areas.
> 
> Carolyn