Re: ColorBurst users switching to Overdrive
Re: ColorBurst users switching to Overdrive
- Subject: Re: ColorBurst users switching to Overdrive
- From: Dick Busher <email@hidden>
- Date: Fri, 26 Oct 2012 16:35:19 -0700
OK, so here is my problem.
I'm creating color seps for a book to be printed by offset at XYZ
Printing. I have a cmyk color profile for their press room
conditions, paper, ink, screening, etc.
I'm starting with several RGB images that are out-of-gamut for their
cmyk profile. I then apply my " secret sauce" to edit the file in
RGB, convert to cmyk, edit again in cmyk in an effort to get as close
as possible on press to the RGB original. How do I then proof that
cmyk file?
Dick Busher
Cosgrove Editions
7042 20th Place NE
Seattle, WA 98115
206-524-6726
888-507-7375
email@hidden
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Message: 3
Date: Thu, 25 Oct 2012 22:37:26 -0400
From: Louis Servedio-Morales <email@hidden>
To: John Lund <email@hidden>
Cc: email@hidden
Subject: Re: ColorBurst users switching to Overdrive
Message-ID: <email@hidden>
Content-Type: text/plain; charset=us-ascii
On Oct 25, 2012, at 12:35 AM, John Lund <email@hidden> wrote:
A few questions that come to mind:
Is (RGB) Overdrive as capable for proofing (for offset repro) as
(CMYK) XProof?
Yes. It allows you to have your printer simulate a specified
device profile and include media tint via Absolute Colormetic
rendering. Also, allows adding a proofing color bar of your choice
with the the IDEAlliance color control wedge a built in option.
I assume Overdrive does not provide linearization capabilities
like XProof - if RGB profiling must include ink limits &
linearization, does this limit the quality of output achievable?
That's right, no linearization capabilities. Only RGB profile
building option. Proofs pass Ugra';s proof and print certification
when wedge is scanned.
I assume Overdrive uses the same Postscript interpreter (Jaws?) as
XProof - pretty good for RIPing PS output, but for raster output,
does Overdrive offer any advantage over simply using the Epson RGB
driver for my SP7880?
Latest version of Overdrive now includes layout nesting
capabilities. My guess is you can probably achieve the same
proofing capabilities via Photoshop.
I also found much better success soft proofing with my custom CMYK
profiles for XProof than with custom RGB profiles - not exactly
sure why, I speculated that it might be related to the behind-the-
scenes "extra" conversion supplied by the Epson RGB driver (to the
CcMmYKk inkset), as compared to the XProof "drive the printer as a
CMYK device" approach -- sorry, that's a long preamble to asking
how well Overdrive RGB profiles soft proof.
No problems here softprooofing.
Feel free to respond off-list if this is too narrow a topic. I
just thought this group might have some folks who can speak to my
questions.
Thanks,
John Lund
JWL Images
Emeryville, CA
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