Re: Creating a SWOP proof with an Epson
Re: Creating a SWOP proof with an Epson
- Subject: Re: Creating a SWOP proof with an Epson
- From: Martin Orpen <email@hidden>
- Date: Fri, 14 Jul 2006 23:11:10 +0100
On 14 Jul 2006, at 12:47 pm, Roger Breton wrote:
In principle, the numeric method should agree with our visual
assessment.
That is, if a proof is on average less than 1 deltaE away from
TR-001, then,
it should agree with our visual sensation as well.
That wouldn't be workable - what printer is going to accept an
average of 1dE as a contract proof?
FOGRA standards allow up to 3 dE for paper white, 5 dE for CMYK and
10dE for a rogue patch read from the rest of the target.
Using "visual matching" in the 21st Century? SWOP is a compromise,
not a standard.
Lee should consider ISO standards. Find an *approved* paper source
that isn't stuffed full of UV brighteners, a RIP that allows the use
of L*a*b correction data, iterative calibration and the best/fastest
spectros you can lay your hands on.
We got certified by FOGRA earlier this year (using Epson 9600s) for
ISO Coated and ISO Web Coated and haven't regretted it.
Our proofs are tested before delivery and the dE values declared on
the proof. They can be tested for accuracy by anybody further down
the production chain and we get to see if there is any drift or
output problems every time we make a proof.
--
Martin Orpen
Idea Digital Imaging Ltd
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