Re: colorsync-users digest, Vol 3 #449 - 16 msgs
Re: colorsync-users digest, Vol 3 #449 - 16 msgs
- Subject: Re: colorsync-users digest, Vol 3 #449 - 16 msgs
- From: Marc Levine <email@hidden>
- Date: Tue, 15 Oct 2002 07:58:46 -0400
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From: email@hidden
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Reply-To: email@hidden
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Date: Mon, 14 Oct 2002 20:36:05 -0700
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To: email@hidden
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Subject: colorsync-users digest, Vol 3 #449 - 16 msgs
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bruce fraser wrote:
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>> Secondly, are the proofing RIPs doing something that is beyond my
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>> ability by simple multiple conversions with good profiles and proper
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>> rendering intents (including proofer profiles like Kodak Approval or
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>> Matchprint to mimic and toss in the rendering mix when desired)?
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> No.
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Well, actually yes, our proofing RIPs do offer features
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you won't get using standard color tools, including passing
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through the black balance from source to destination
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profile while doing color correction (an advantage of
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using device link style profiles), as well as achieving
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a higher color accuracy under real viewing conditions,
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than any of the standard tools provide.
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Graeme Gill.
While we're making clarifications, I figured I'd jump in with my obligatory
colorsync posting. Regarding the whole UCR GCR issue, I would think about it
like this... The problem with digital proofing is that the ink and media
sets you are using to make proofs are miles away from those which you are
using to produce your press sheet. Even if you define the same laws for
UCR/GCR settings, your proofing profile will STILL be dramatically different
that the press profile due to the "intelligence" that a good
profile-building application will use when computing separations. In other
words, don't be biased by the construction of your source profile. You ARE
going to Lab, from which you should be intent on building the most accurate,
dynamic data that you can - that's what a good output profile will do for
you.
Regarding the construction of SWOPv2, you should be able to see this with a
Profile evaluation tool such as ICC Tools' ProfileViewer, ColorThink, or
possibly using the colorsync utility in OS X.
Lastly, the RIP. RIPs are basically just big calculators. Keep in mind that
it is VERY important to have a robust RIP that does everything you need it
to, including the abaility to work with ICC profiles. What Graeme alluded to
was a RIP's ability to use ICC device link profiles. These links give you
some special capabilities in the RIP, but cannot be used in applications
such as Photoshop for the purposes of previewing - so there are plusses and
minuses. You should also consider that some RIPs let you treat different
data types with different rendering intents - maybe you want an absolute
color transform for your named colors and a perceptual transform for your
RGB source. RIPs can make it all happen conveniently. When purchasing a RIP,
I would consider productivity, flexibily, and ease of use. How many devices
are you driving? How sophisticated would like your color treatment to be?
You get the picture.
Anywhoo, don't get hung too up on your proofer profile settings - a good
profile building package should make a good profile. Hope this helps.
-Marc
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Marc Levine
Monaco Systems
North American Accounts Manager
Technical Sales Engineer
www.monacosys.com
email@hidden
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