Re: Dumb question for european prepress specialists
Re: Dumb question for european prepress specialists
- Subject: Re: Dumb question for european prepress specialists
- From: Bret Hesler <email@hidden>
- Date: Tue, 29 Nov 2005 08:48:36 -0500
- Thread-topic: Dumb question for european prepress specialists
I have used the GRACoL 7 Process on several uncoated papers. It works well
in that it keeps the visual appearance of the highlight to midtone range
consistent across all grades and finishes. It basically limits the tone
compression, or differences in the tonal range, to the 3/4 tone and shadow
areas. The color will be similar, but not be exactly the same on every
paper, as paper will have an increasing affect on color the closer you get
to putting no ink on it.
I have also used the process on our stochastic (Staccato) process and gotten
a very close representation of 200LS printing on the same paper. There are
differences mostly in the 1/4 tone to highlight area where stochastic tends
to produce more pure colors.
Bret Hesler
L. P. Thebault Company
On 11/28/05 11:16 PM, "Roger Breton" <email@hidden> wrote:
>> I don't think it will be an absolute L* value, but it is the same for K and
>> CMY as it is right now. I think the web conference on the process spelled it
>> out as 0.54 density above the visual density of the paper, so this will vary
>> based on the paper.
>>
>> Bret Hesler
>> L. P. Thebault Company
>
> Bret,
>
> What are the chances of this calibrating strategy to work across a number of
> paper grades? 0.54 on coated is intuitive. Would 0.54 also work on uncoated,
> and, possibly, newsprint in your opinion? Or is 0.54 really not that
> "portable" as a calibration aimpoint?
>
> Roger Breton | Laval, Canada | email@hidden
> http://pages.infinit.net/graxx
>
>
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