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: Mon, 17 Jul 2006 12:01:40 +0100
On 17 Jul 2006, at 2:30 am, Roger Breton wrote:
Terry's point is valid, and by not responding directly to his point
you are
just dragging the issue further. Terry and myself and I'm sure a
host of
others on this list all well understand Fogra. We're not debating
Fogra's
tolerances but we think you are citing their numbers in the wrong
context.
All we're saying is that, Fogra or not, the proof has to be within
a close
range of the Fogra or SWOP or whathever reference dataset. How well
the
press is able match that is another issue.
If you "well understand Fogra" then you'd well understand the figures
that I quoted.
The proofs are "verified" to be good if the average dE is less than 4
and the maximum is less than 10 when the FOGRA test strip is read.
Personally we prefer to run with greater accuracy here and have never
sent a proof to a client where the maximum exceeded 3 dE (I don't
want a client to be able to *see* a difference).
If you can maintain less than 1 dE over the whole test strip then I
take my hat off to you.
I don't see the point - especially if the proof is unlikely to even
meet another spectro, let alone the identical model to yours - which
is the only way you are going to get a contract proofing system to
work with tolerances less than 1 dE.
Regards
--
Martin Orpen
Idea Digital Imaging Ltd
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