Re: U.S. Web Coated (SWOP) v2 using GCR or UCR?
Re: U.S. Web Coated (SWOP) v2 using GCR or UCR?
- Subject: Re: U.S. Web Coated (SWOP) v2 using GCR or UCR?
- From: Terry Wyse <email@hidden>
- Date: Wed, 5 Apr 2006 11:23:55 -0400
Wow. I've never poked around in there and realized the Lab values are
so far off of "reality". Chroma(ab) of cyan (57) is about right,
perhaps a bit low, but the chroma of magenta (83) and yellow (100) is
at least +5 higher than what it should be. Typical magenta would/
should be around 74-78 and yellow around 93-95. Looks like the hue
angle of the yellow is significantly greener than normal offset as
well. I won't even comment on the black! (with an L* of 0, I wonder
what the pressman thinks as he plunges his ink knife into a 5 lb. can
of utter and absolute blackness?).
:-)
Regards,
Terry Wyse
_____________________________
WyseConsul
Color Management Consulting
G7 Certified Expert
email@hidden
704.843.0858
http://www.wyseconsul.com
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On Apr 5, 2006, at 10:46 AM, bruce fraser wrote:
The old Ink Colors have
Cyan = Lab 62 -31 -48
Magenta = Lab 48 83 -3
Yellow = Lab 94 -14 100
Black = Lab 0 0 0 (!)
US Web Coated (SWOP) v2 has
Cyan = Lab 62 -44 -50
Magenta = Lab 52 81 -7
Yellow = Lab 95 -6 95
Black = Lab 12 2 0
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