Digital BW, The Print

Paul,

Thank you for the clarification. Your measurements are easier for me 
to grasp than the posted images. I am especially encouraged by the 
visual density differences between PT-K and Gen-K. I, for one, am not 
overly concerned about "archival". I would, however, like the prints 
to last as long as my attention-span;-). In all seriousness though, I 
don't sell, and dont't intend to try selling. So if the prints remain 
rock solid for 10 years with intermittent display on my moderately 
lit wall, I will be perfectly happy.

Still, I am curious where the "eggplant" and "chromatic complexity" 
of the PT-S inkset is coming from. I am so cheap, I think I can 
duplicate it with MIS FS inks. I will ofcourse spend more time/money 
duplicating something with only moderate sucess than if I had just 
forked over my money to Inkjetmall! But then I may learn something 
new, and hey that is worth it all!

Best Wishes.

Shilesh


--- In DigitalBlackandWhiteThePrint@y..., "Paul Roark" 
<paul.roark@v...> wrote:
> Martin,
> 
> You wrote:
> 
> >I really am beginning to wonder if the PT-K and the Gen-K are not 
the same
> >ink. ...
> 
> >Also check out Paul's fade testing of the Gen and Indelible blacks 
in
> >folder:
> 
> >Files > Ink Sets > MIS
> 
> >and then take a look at his fade test of the PT-K, PzoTone-VM-FS-K-
100
> >hr fade test.jpg , in folder:
> 
> >Files > Ink Sets > PiezoTones > PiezoTone vs MIS-FS
> 
> >...
> 
> Although comparing test strips from different runs of the fader 
increases
> the chances of other, random factors influencing the results, the 
two tests
> you noted above suggest to me that PT-K and Gen-K are not the 
same.  The Gen
> K seemed to perform much better.
> 
> Note also that the control test strips (both K-only on EAM) are much
> different.  The Gen-K has a visual density of 1.82, while the PT-K 
has a
> visual density of 1.74.  The Gen-K also is 0.02 units cool at the 
100% spot,
> whereas the PT-K is 0.03 units warm.  Note that the cool black of 
the Gen-K
> would make it a better fit for the "selenium" tone due to this cool 
black.
> (This is on EAM.  Results on PhotoRag may be different.)
> 
> Gen. Enhanced K is the one I recommend to others who want a deeper 
black.
> 
> I do think the inks are similar in that they appear to be hybrid 
pigment-dye
> inks.  That alone might make the separations you've seen in water 
appear
> similar.
> 
> Paul
> http://www.PaulRoark.com