Hi, we are testing out an Epson 9800 right now and were having some
issues.
The red (100%y 100%m) Doesnt get red enough. To low intensity. And
the Delta E value landing on 9! All other colors are good. Im been
searching the net but havent found anything about this.
Im using GMG Colorproof and Fogra39 values.
Any ideas whats wrong?
This might be th wrong forum to ask about this but I'll give it a go
anyway.
//
_________________________
Magnus Sandström
Alfa Print
Cirkusgränd 2
172 63 Sundbyberg
08-546 007 74
>we're set to go for the ISO audit... After quite a study of the ISO
system and process, we have found out that what was being implemented
and sold here locally was all wrong... We plan to go for the
certification ASAP,>>>
Hi There,
In the above, are you refering to an entire quality system
certification (ISO 9000/1) or just certification of the print process
toward ISO 12647? Just curious as it is possible to be ISO 9000
certified, while not printing toward ISO12647, or vice versa.
Michael Eddington
North American Color, Inc.
www.nac-mi.com
---------------------------------
Need a vacation? Get great deals to amazing places on Yahoo! Travel.
Hi People,
we're set to go for the ISO audit... After quite a study of the ISO system and process, we have found out that what was being implemented and sold here locally was all wrong... We plan to go for the certification ASAP, any audit group that are near our region and interested to render their service and consultancy, please send proposal and service fee directly...
intersted group, please send proposal by email to joey_santos07(a)yahoo.com...
joey santos
makati, philippines
---------------------------------
Need a vacation? Get great deals to amazing places on Yahoo! Travel.
Thanks to all who have replied, I have learnt something and will put it
in to practice straight away!
On 6 Jun 2007, at 11:00, eci-en-request(a)lists.callassoftware.com wrote:
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> Today's Topics:
>
> 1. ISO Newspaper26v4 and Tone Value Sum (M. Frank)
> 2. Re: TAC in ISOnewspaper26v4 (Roger Breton)
> 3. Re: TAC in ISOnewspaper26v4 (kristoff.decroix(a)roularta.be)
> 4. Re: TAC in ISOnewspaper26v4 (Peter Kleinheider)
> 5. Re: TAC in ISOnewspaper26v4 (junglas(a)ifra.com)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 5 Jun 2007 13:56:06 +0200
> From: "M. Frank" <m.frank(a)get2net.dk>
> Subject: [ECI-EN] ISO Newspaper26v4 and Tone Value Sum
> To: <eci-en(a)lists.callassoftware.com>
> Message-ID: <006701c7a768$81377080$2101a8c0@dtp>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Hi xxx
>
>
>
> There is a limit being applied by the profile, but it is dependent on
> the choice of rendering intent and Black Point Compensation.
>
> The profiles default rendering intent is perceptual. Try without "Use
> Black Point Compensation" Then you get 240%.
>
>
>
> According to ISO12647-3/2005 SE - Coldset offset lithography on
> newsprint
>
> 4.2.7 Tone value sum
>
> Unless otherwise specified, the tone value sum should not exceed 240%
> and shall not exceed 260%
>
>
>
> NB. Should not exceed 240%, not necessarily 240%.
>
>
>
> Maybe this will be of interest:
>
> By John Nate - Special to Newspapers & Technology
>
> "All of our recent testing and all the recommendations by the
> Newspaper Association of America and Ifra recommend using perceptual.
> While relative with black point of the destination works for many
> print environments, perceptual simply gives us better results in
> saturated and shadow colors today while maintaining good tonality
> through the printable tone range".
>
>
>
>
>
> Best regards
>
> Mikkel Valentin Frank
>
> Copenhagen Polytechnic - Technology and communication
>
Hi ,
Running some tests on isonewspaper26v43 and am only achieving 213%
tac at L*0 on conversion.
The spec says it should be 240%, is there some form of limit being
applied to this profile?
Hi,
Conversion RGB to CMYK with ISOnewspaper26v4 gives the folowing results.
R: 0, G: 0, B: 0 conversion with relative or perceptual renderingintent,
with or without black point compensation.
ISOnewspaper26v4.icc (Coldset TIC240%)
TIC relative /without black point compensation: 229%
TIC relative / with black point compensation: 216%
TIC perceptual / without black point compensation: 240%
TIC perceptual / with black point compensation: 220%
The conversion to CMYK must be done perceptual and without black point
compensation.
Kind regards,
Kristoff Decroix
Roularta Media Group
-----Oorspronkelijk bericht-----
Van: eci-en-bounces(a)lists.callassoftware.com
[mailto:eci-en-bounces@lists.callassoftware.com] Namens Roger Breton
Verzonden: dinsdag 5 juni 2007 13:16
Aan: eci-en(a)lists.callassoftware.com
Onderwerp: Re: [ECI-EN] TAC in ISOnewspaper26v4
> Hi ,
> Running some tests on isonewspaper26v43 and am only achieving 213% tac
> at L*0 on conversion. The spec says it should be 240%, is there some
> form of limit being applied to this profile?
Not much you can do about it. I had to recreate the profile out of the
embedded measurements with PrintOpen to finally attain the 240% limit.
Regards,
Roger Breton | Laval, Canada | graxx(a)videotron.ca
certified color management enthousiast http://pages.infinit.net/graxx
_______________________________________________
ECI-EN mailing list
ECI-EN(a)lists.callassoftware.com
http://lists.callassoftware.com/mailman/listinfo/eci-en
Hi xxx
There is a limit being applied by the profile, but it is dependent on the choice of rendering intent and Black Point Compensation.
The profiles default rendering intent is perceptual. Try without "Use Black Point Compensation" Then you get 240%.
According to ISO12647-3/2005 SE - Coldset offset lithography on newsprint
4.2.7 Tone value sum
Unless otherwise specified, the tone value sum should not exceed 240% and shall not exceed 260%
NB. Should not exceed 240%, not necessarily 240%.
Maybe this will be of interest:
By John Nate - Special to Newspapers & Technology
"All of our recent testing and all the recommendations by the Newspaper Association of America and Ifra recommend using perceptual. While relative with black point of the destination works for many print environments, perceptual simply gives us better results in saturated and shadow colors today while maintaining good tonality through the printable tone range".
Best regards
Mikkel Valentin Frank
Copenhagen Polytechnic - Technology and communication
