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Re: Commercial Printers and Color Management
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Re: Commercial Printers and Color Management


  • Subject: Re: Commercial Printers and Color Management
  • From: Roger Breton <email@hidden>
  • Date: Tue, 07 Oct 2003 20:45:55 -0400

> When you submit a system for SWOP approval you are compared against the most
> recent SWOP approved press run.

I hate to ask but what form does the "most recent SWOP approved test run"
takes? I don't suppose that this is that part of the SWOP Analog or Digital
Calibration Kit?

> TR001 contains the colormeteric data from a press run done in 1993. There
> have been many runs since and they differ from TR001.

Anyone of those runs documented?

> It is my understanding that TR001 is not the aiming point for SWOP approval.
> The current approved press run is the aiming point

At the bottom of page 40, 9th Edition, it is stated that: "Data
characterizing the nominal center point of the population of Certified Press
Proofs can be found in ANSI/TR001." The paragraph right above starts with
"SWOP proofing systems can be calibrated by use of the SWOP Calibration Kit
(analog) or the SWOP Digital Calibration Kit." I ask you: what calibration
can they be talking about if not the color of the proof itself? To me, this
is crystal clear: TR001 is the "nominal center point" of SWOP Certified
Press Proofs. How many ways can it be interpreted otherwise?

> I would welcome an objective colormeteric aiming point for SWOP. It is my
> understanding that we are not there yet.

So you're saying that TR001 has been rendered "obsolete" by virtue of all
those press runs that have taken place since 1993?

> Regardless of how close your colormeteric data may be to TR001, your
> approval depends on a subjective panel of three people deciding if your
> proof is visually close to the most recent SWOP approved press run. The
> decesion is subjective and not releated to making objective measurements and
> comparing them to TR001.

So, in the end, it's visual process you say? There is no objective,
scientific, rigorous colorimetric analysis involved in certifying a "SWOP"
proofing system? So all the systems listed at
http://www.swop.org/certification.html#cert are the results of visual
inspection by a subjective panel of three people? They better have their
color vision checked by the Munsell/Farnsworth 100 Hue test! Talk about
being in the stone age.

Regards,

Roger Breton | Laval, Canada | email@hidden
http://pages.infinit.net/graxx
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References: 
 >RE: Commercial Printers and Color Management (From: Ray Maxwell <email@hidden>)

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