SWOP v2 vs GRACoL's SWOP profiles [was: SWOP C3 and C5 Profiles?]
SWOP v2 vs GRACoL's SWOP profiles [was: SWOP C3 and C5 Profiles?]
- Subject: SWOP v2 vs GRACoL's SWOP profiles [was: SWOP C3 and C5 Profiles?]
- From: Marco Ugolini <email@hidden>
- Date: Sun, 22 Feb 2009 13:07:08 -0800
- Thread-topic: SWOP v2 vs GRACoL's SWOP profiles [was: SWOP C3 and C5 Profiles?]
In a message dated 2/21/09 6:07 PM, Terry Wyse wrote:
> On Feb 21, 2009, at 3:23 PM, Roger wrote:
>
>> Jim,
>>
>> "Perfect" is going to be hard to come by.
>>
>> One question, why bother "converting": why not go straight to
>> "assign" the
>> new C3 and C5 profiles to new documents? In EFI, just convert from
>> C3 or C5
>> to your printer's profile.
>>
>> With C3 and C5 profiles shipping with CS4, I think it's high time
>> for people
>> to give up SWOPv2.
>
>
> Can I get an "AMEN!" on that one? It's almost as if people don't
> realize that SWOPv2 is officially out-moded and should be replaced
> with SWOP C3/C5. Time to move on!
Dear Terry and Roger,
I would join your enthusiasm wholeheartedly if it were not for the fact that
the press conditions assumed by GRACoL's SWOP profiles (SWOP2006_Coated3v2
and SWOP2006_Coated5v2, which are referred to here as "C3" and "C5") are
currently not being met by what is probably a sizable majority of print
providers. I have seen a number of them starting to advertise that they "use
GRACoL," but those are still few and in between -- and I also question how
much of that claim is more marketing than actually a reflection of how
closely they are really matching actual GRACoL print conditions.
Also, I would like to underscore what may seem obvious to some of us, but
may be worth reminding -- namely that US Web Coated (SWOP) v2 and GRACoL's
SWOP profiles do *not* produce the exactly same visual results when using
the same set of CMYK numbers, though SWOP2006_Coated5v2 comes close.
To illustrate that point, see 2 screenshots from CMYK color lists in
ColorThink Pro at these URLs:
US Web Coated (SWOP) v2 compared to SWOP2006_Coated3v2:
<http://tinyurl.com/awkndq>
US Web Coated (SWOP) v2 compared to SWOP2006_Coated5v2:
<http://tinyurl.com/bxf23t>
Each screenshot shows the same list of CMYK color numbers with 2 different
profiles assigned to it: US Web Coated (SWOP) v2 is assigned to the color
list on the left, whereas SWOP2006_Coated3v2 or SWOP2006_Coated5v2 is
assigned to the one on the right. The color differences are expressed in
units of DeltaE 2000, using the Absolute Colorimetric rendering intent.
Marco Ugolini
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