Scanner and Printer Profile Editing for Fine Art Repro
Scanner and Printer Profile Editing for Fine Art Repro
- Subject: Scanner and Printer Profile Editing for Fine Art Repro
- From: steven kornreich <email@hidden>
- Date: Thu, 11 Nov 2004 05:59:53 -1000
Well as I try to continually fine tune my fine art repro business I always
seem to end up at the same place. Making sure that both my scanner and
printer profiles are working to there best of there abilities.
To me it only seems correct that the first thing I should be able to
reproduce on a consistent basis is the 24 patch gretag color checker chart.
But before I even start there, I try to verify that my printer profile is
working ok. So using the synthetic version of the color checker chart which
I downloaded from Bruce L's website, I print the lab file through PS CS
through my Best Color Proof Rip. In PS, when I print the file I am using
relative colormetric with BP checked, reason being is this is how I normally
print 98% of all my images and never use absolute colormetric because there
is to much clipping. I also check my printer profile using ALWAN Color
Pursuit, which I have been getting consistent profile quality of 9 out of
10. So I take my print, and evaluate it under my gti light box next to the
color checker chart. Right off the bat, I notice some density issues and
some gray balance issues. To verify this I break out my trusty i1 and using
the measure tool, first look at the white square, the forth gray square and
the black square. For density purposes I am just looking at the "L" value.
Since I am printing on canvas, the white point of the canvas is around L94,
after reading my print I am getting L91, so I can see why my white patch is
not white. Then looking at the forth patch gray, The L should be 51 but mine
is 55 and on the black square I am getting L 28, but it should be around L
20.
So this leads me to my first profile editing question.
Should I try to correct this in the printer profile using either Profile
Maker 5 editor, Monaco Profiler 4.6.1, Fuji ColorKit editor 4.0.7. The
reason I mention all of those is that is what I have to use at my shop, and
a side bar note. Is there any good documentation on any of these apps when
it comes to editing a profile? I sure have never seen any.
Being an ex drum scanner operator from the good old days, I was always did
corrections in the following order, Hi light, Shadow, gray, then finally
selective color. I notice all the profile editing programs seem to be set up
the same way.
Remember at this point all I am trying to accomplish is first getting the
bottom row of the color checker chart to match my output. Seems simple
enough. NOT. Am I asking to much of CM? Shouldn't I be able to at least be
able to shoot a chart, weather it's gretag's, Fuji, Kodak, or Hutch and be
able to get a good visual match? Seems reasonable. I realize that CM in my
application is not the silver bullet, and there will always be a need for
selective color correction in PS to get a good match. But how much?
Where I am at is basically I have had some limited success in not screwing
with the printer profile, but instead making these adjustment in my scanner
profile which I use on every piece of art I shoot.
In Bruce's book real world color management, it mentions not to be tempted
in going down the so called black whole of using the gretag chart for
profile evaluation, but for what I am trying to accomplish with CM is trying
to match a known source color, in this case either the gretag chart, or
ultimately the piece of art I am reproducing for my client.
Am I going about this all wrong?
I wish I could afford to fly one of you great color management guru's to
Maui Hawaii for one on one consult, but I can't.
Anyone out there interested in doing some phone consultation to set me
straight?
_________________________________________________________________________
Kornreich Fine Art Prints
Steven Kornreich
email@hidden
http://www.kornreichprinting.com
http://www.beachlook.com
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