Digital BW, The Print

Hi Paul,

You mention using LK as part of your Carbon-6 setup here, but I didn't
see LK mentioned in your Carbon-6 PDF. Are you referring to something
different? 

On a related note, I was wondering why only 6 position in Carbon-6.
Would adding a 7th position not make any practical difference on a
7-position printer like a 7600? I was curious whether diluting Y 1 to
1 with base would make prints any smoother - and using this dilution
as #7.

Thanks,

Mark   

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "pr_roark"
<pr_roark@...> wrote:
>
> 
> I've been experimenting with different ways to profile the C6 inkset in
> the 2200.  The QTR rip appears to be just a bit better than the Epson
> driver, but they are so close I don't think even with a magnifier anyone
> will notice the difference.
> 
> With the Epson driver the LK cross-over can cause problems with curves
> unless the curves converge evenly as they approach 100%.  I've been
> using my Grand Canyon shot -- http://paulroark.com/Grand_Cyn.html
> <http://paulroark.com/Grand_Cyn.html>  -- as the test print  Even when
> the 21-step ramp looks perfect, most of the Photoshop curves I tried put
> artifacts in the sky.  The artifacts look like haze waves and are caused
> by the slope of the ramp being un-even.  So, it's a very tough image to
> print well.  I'm quite sure the LK cross-over is what causes the
> problem, and having the color curves converge very evenly solved the
> problem.
> 
> While partitioned curves made in Photoshop and embedded in an ICC with
> Create ICC-RGB make among the best prints, a very simple grayscale ICC
> is visually equal and essentially perfect.  That is, I just print a
> 21-step test file with the driver at 2880 and Color Controls gamma 2.2. 
> I read that 21-step file and make an ICC with Create-ICC (no curves). 
> Then print the test print with that grayscale ICC, and the image is
> visually -- even with a magnifying hood -- as good as the best I've
> seen.  So, easy works for me.
> 
> 1440 will be visually OK for most, but upon very close inspection, I can
> see the difference between it and 2880.
> 
> Since I'll actually be using the 2200 for my printing, I'll no doubt
> have a number of profiles for it with time.
> 
> Next up is the C88+.  Epson has them in stock, so I bought one for my
> daughter who is going away to college and will need a printer.  While
> I'll set that up with a SuperJet (eBay) CIS and color for her, before
> that I'll see if Carbon-6 works for that printer.
> 
> Paul
> 
> www.PaulRoark.com <http://www.PaulRoark.com>
> 
> 
> 
> 
> 
> [Non-text portions of this message have been removed]
>