Re: [ECI-EN] RE: ECI-EN Digest, Vol 5, Issue 6
15 Jun
2006
15 Jun
'06
3:35 a.m.
Dear Nadish,
I think you could adopt the ISOnewspaper26v4.icc profile as
"generic" newsprint profile.
ISOcoated & the ISOwebcoated are color profiles made for coated paper
that is not used to print newspapers. It's correct that the primary
CIELAB value doesn't match (and the total ink too).
Your reference is the ISO 12647-3 (Coldset offset lithography on
newsprint) and not the ISO 12647-2.
Maybe you're trying to manage small gamut of the newsprint adopting a
bigger color space profile, but the correct way is to optimize the
color conversions (e.g.RGB to CMYK).
Maybe you need to reproduce data made for ISOcoated output intent on
a newsprint printing condition, than you will need to repurpose the
files with a specific system (Alwan CMYK Optimizer,Binuscan PdfImage
+, gmg ColorServer...).
Yours faithfully,
Carlo Balestrini
RCS Quotidiani
Via Rizzoli,2 Milano
I-20132 Italy
Il giorno 14/giu/06, alle ore 12:51, Nadish Naoroji ha scritto:
Dear Carlo,
Many thanks for the info. I had previously rejected this profile on
the
basis that
The ISO Web Coated profile is max 2.5 Delta E off from ISO 12647-2
compliance.
The ISO newsprint profile is max 11.4 Delta E off from ISO 12647-2
compliance.
I would have preferred a profile with closer compliance than 11.4DE.
I am not sure what is causing such high DE numbers. Can anyone
clarify?
Thanks
Nadish
Message: 5
Date: Wed, 14 Jun 2006 03:41:31 +0200
From: Carlo Balestrini <carlo.balestrini(a)rcs.it>
Subject: Re: [ECI-EN] ISO Uncoated profile and ink limits
To: eci-en(a)lists.callassoftware.com, nadish(a)multimatch.biz
Message-ID: <DB08F23E-5C4A-44AA-8F6B-5A7BD881639B(a)rcs.it>
Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed
Hi Nadish,
you can find the profile that you need in the ifra site
www.ifra.com/
WebSite/ifra.nsf/html/cont_consultisoprof
it's based on DIS/ISO 12647-3:2004 with a total ink of 240%
(ISOnewspaper26v4.icc).
Anyway you can find all the characterization data in that you need in
the ICC site www.color.org/drsection1.html
Regards,
Carlo Balestrini
RCS Quotidiani
Via Rizzoli,2 Milano
I-20132 Italy
Il giorno 14/giu/06, alle ore 01:27, Nadish Naoroji ha scritto:
The download archive ECI_Offset_2004 contains the
ICC profiles ISO
Coated, ISO Web Coated, ISO Uncoated and ISO Uncoated Yellowish. In
case you are not sure which ICC profile for offset printing to use,
it is recommended to use ISO Coated.
=====================================================================
=
====
I noted the above information on the ECI site. I found the ISO Web
Coated profile to have a Total Ink Limit of 300%.
I found all the other profiles to have ink limits in the range 320%
to 350%.
I don't believe an Uncoated stock can accept 350% ink.
I am looking for an ISO profile with ink limit of around 260% for
use as a generic Newsprint profile.
Is the data for the ISO Uncoated profile available?
If so I could make a profile with required ink limit from this data.
Thanks
Nadish Naoroji, Multimatch Australia.
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End of ECI-EN Digest, Vol 5, Issue 6
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