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Digital BW, The Print

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Re: [Digital BW] Create icc problem (UT14 curves on matte paper)

2012-09-05 by Foon Hoe

Hi Paul,

Thanks for the reply. Sorry if I have confused you, but I am trying to make warm toned prints on matte papers.

Your 1400-profile.zip only has .icc for glossy type papers, hence my trying to make new icc for the matte paper I am using.

I tried the following three curves applied to an adobe RGB converted 21-Step_0-100_L16_GG22.tif:
UT14-Matte-N-1.acv
UT14-Warm-1-MHW.acv (Example link: http://i.imgur.com/Y6KWm.jpg)
UT14-Warm-2-MHW.acv
(I assumed MHW means matte heavy weight)

I print them by:
-Printer manager color 
-Printer chose icc - adobe RGB
-highest print quality

On the darker levels the printed step wedge just didn't show distinct enough lab values to be used in the QTR-create-icc-rgb script. I ended up making the icc by skipping a few steps. Here is my example from the QTR-create-icc-rgb output:

QTR-Create-ICC RGB version 2.7.2.0

File: /Applications/QuadToneRIP/ut14-matte-w1-out.txt
Step	Dens	Lab	A	B	
0.00	0.081	93.00	0.00	0.00	-                             b                        L    +
5.00	0.130	89.00	0.00	0.00	-                             b                      L      +
10.00	0.180	85.00	0.00	0.00	-                             b                    L        +
15.00	0.220	82.00	0.00	0.00	-                             b                  L          +
20.00	0.288	77.00	0.00	0.00	-                             b               L             +
25.00	0.345	73.00	0.00	0.00	-                             b            L                +
30.00	0.436	67.00	0.00	0.00	-                             b         L                   +
35.00	0.517	62.00	0.00	0.00	-                             b      L                      +
40.00	0.603	57.00	0.00	0.00	-                             b   L                         +
45.00	0.775	48.00	0.00	0.00	-                           L b                             +
50.00	1.021	37.00	0.00	0.00	-                     L       b                             +
55.00	1.324	26.00	0.00	0.00	-              L              b                             +
65.00	1.355	25.00	0.00	0.00	-              L              b                             +
80.00	1.387	24.00	0.00	0.00	-             L               b                             +
85.00	1.454	22.00	0.00	0.00	-            L                b                             +
95.00	1.489	21.00	0.00	0.00	-           L                 b                             +
100.00	1.638	17.00	0.00	0.00	-         L                   b                             +

WARNING: None of the RGB curves are in ascending order.
Cannot make the Soft Proofing side of profile.

Created ICC file /Applications/QuadToneRIP/ut14-matte-w1-rgb.icc



My question is, how do I print a better initial step wedge that shows better separation on all 21 levels?






--- In DigitalBlackandWhiteThePrint@yahoogroups.com, Paul Roark <roark.paul@...> wrote:
>
>  feedthefoon <feedthefoon@...> wrote:
> 
> > **
> >
> >
> > I have recently got the UT14 set and was quite happy with the prints just
> > using Epson driver - grayscale. I ran in to some problems trying to create
> > some iccs for warm and neutral tone. I couldn't get enough separation while
> > printing out the first 21-step wedge. Could anyone please give me some
> > advice?
> >
> > Paper: Red River polar matte, Iford Smooth Heavyweight matte
> > ACV curve: From Paul's UT14 profile pack. The matt N1,W1,W2 curves
> >
> 
> Start with curves made for glossy papers, such as the Ilford Gold Silk or
> the Kirkland.  Use one that states "nca" - no color adjustment.
> 
> The matte paper curves will use Eboni for the blacks, that won't work well
> with glossy papers.  The glossy curves use a mix of the C and M inks, which
> are glossy PK types.
> 
> 
> > My process: I opened Paul's 21-step GG2.2 tiff file in photoshop CS6, and
> > then converted the file from GG2.2 to Adobe RGB(1998). I loaded the curve,
> > and get a colored step wedge. To print, I let printer manager color (as
> > oppose to photoshop), chose Adobe RGB as the icc, print with photo RPM and
> > all the highest quality setting. (Did I do this right?
> >
> Yes (probably).  I tend to use the highest quality printing.
> 
> Let's make sure we talking about glossy curves being used before going into
> other possible problems.
> 
> Paul
> www.PaulRoark.com
> 
> 
> 
> 
> >
> >
> 
> 
> [Non-text portions of this message have been removed]
>

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