Re: Replacing CMY with K in Photoshop CS3
Re: Replacing CMY with K in Photoshop CS3
- Subject: Re: Replacing CMY with K in Photoshop CS3
- From: Louis Dery <email@hidden>
- Date: Fri, 6 Jun 2008 08:39:57 -0400
Hi Rick,
The "dot gain effect caused by variance in black ink density" is
true. BUT, it also depends on the software you’ve used to create your
profile with GCR!
I’ve made many comparisons (M, P, G, O, etc.) and I can say that
every one have its own way to make GCR, bad or good!
Different approaches can be a disaster on press! You will see it only
when it is going to be printed. Especially the Black ink density
variation you mentioned.
As a color profiling software developer, we used our own way to do it
and it takes care of this "effect".
Also, in the same comparisons, the GCR used from many solutions is so
badly made, that you cannot go bellow the 260 TIC (Total Ink
coverage) because you loose all the saturation and color accuracy in
the shadow areas.
So, take care about WICH GCR you plan to use.
http://www.tglc.com/english/PerfX/ICC_DeviceLink_benefits.html#Demo_GCR
Louis Dery
Color Management Expert
TGLC inc.
www.tglc.com
email@hidden
418-877-9114
On Jun 5, 2008, at 3:10 PM, Rick Gordon wrote:
GCR is safer for avoiding color casts based on small ink density
variants on press. The tradeoff is that the more black you add, the
more you need to watch for the dot gain effects caused by variance
in black ink density.
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