Digital BW, The Print

Ugh..  Not the pretty charts Greg mentioned earlier. ;-)

Well, looking at delta E values for all inks, it looks like the eem 
paper took a hit, confirming what we knew about that paper.  It may 
not be wise to look at it for longevity testing.
On epsg, the NC ink shows its best performance, but we don't have an 
ED sample to compare it to.  
On epg it looks much like the ED ink sample.  
On albrecht, the M and m ink took a bigger hit than the respective ED 
inks, while the other colors look somewhat similar to ED.
For the UC inks sample, they are in a different class.  Only the M 
shows some weakness on glossy, and both M and lm are weak on matte.  
All other colors show much lower delta E than the other two inks.

Best regards,
John Moody



--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Shilesh Jani" 
<shileshjani@...> wrote:
>
> Greg,
> 
> Thank you for doing this. I will not get a chance to look at the 
> data any time soon. I am on a trip to the Rocky Mountains - really 
> beautiful here. But I am an engineer, remember ;-) so it is all 
work 
> right now - groan.
> 
> I printed the steps using QTR. Each color was printed at 25, 50, 
75, 
> and 100 percent ink limit. Easy to do with QTR. Yup, no LK for the 
> Epson dye and NanoChrome because the R220 printer is a 6 color 
> machine.
> 
> By the 18th day of the south window exposure, I was interested only 
> in the K (I have my reasons). Hence I measured only the K values at 
> 25% ink limit. It was enough for my needs. Your tests may shed a 
> light on these inks for a more general color use.
> 
> Shilesh