Re: ColorBurst users switching to Overdrive
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 dick@cosgroveweb.com
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Message: 3 Date: Thu, 25 Oct 2012 22:37:26 -0400 From: Louis Servedio-Morales <louis@blueseaeditions.com> To: John Lund <john@jwlimages.com> Cc: colorsync-users@lists.apple.com Subject: Re: ColorBurst users switching to Overdrive Message-ID: <676A8518-6998-4C58-BE7B-84BDADDBE5B4@blueseaeditions.com> Content-Type: text/plain; charset=us-ascii
On Oct 25, 2012, at 12:35 AM, John Lund <john@jwlimages.com> 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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Why not just soft proof the RGB file using the XYZPrinting profile and do all your editing before converting to CMYK? -Louis On Oct 26, 2012, at 7:35 PM, Dick Busher <dick@cosgroveweb.com> wrote:
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 dick@cosgroveweb.com
participants (2)
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Dick Busher
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Louis Servedio-Morales