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Digital BW, The Print

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K3 vs. K7 - Initial Observations

2005-12-08 by joshhackney

Set-up #1.  7800, K3, Epson Matte Black, ABW, Neutral, Light, Innova Photo Smooth 
Cotton, QTR create ICC with i1.
Set-up #2.  2200, K7, K7 Black, QTR, IJM's QTR curve for Innova Photo Smooth Cotton, 
Innova Photo Smooth Cotton, QTR create ICC with i1.

My first observation is that the media type selection in ABW mode effects hue.  Perhaps 
that fact has already been posted, but I must have missed it.  The Ultrasmooth FA media 
selection produces a warmer print on the above Innova paper than does the VFA media 
setting - both were printed with neutral and light selected within ABW.  Walt, since I know 
you are actively using both of these papers, is VFA a warmer paper than Ultrasmooth FA?  I 
haven't used USFA yet.  I assume ABW is trying to compensate for the paper as it tries to 
produce "neutral" prints.

Jon Cone has taken it on the chin a bit for not having great dmax with the new K7 inks, 
but I am finding that they measure significantly better than Epson's Matte black.  On the 
same Innova paper, the best dmax I have achieved with K3 is 1.598, while with K7 I have 
achieved dmax of 1.638.  That's a significant difference.  From my observations, I see no 
reason not to wholehearted embrace the K6/K7 inks.  For now, I believe that I am stuck, 
since I have not seen any third party inks in the new pressurized carts for the 7800/9800.  
Nice work Jon.  I'm waiting patiently for the day I can run K7 in pressurized carts!

Best.

Josh

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