RE: Paper Question
RE: Paper Question
- Subject: RE: Paper Question
- From: Roger Breton <email@hidden>
- Date: Tue, 09 Sep 2014 14:19:20 -0400
Terry's reply IMO is perfect.
"if you subscribe" is the keyword here. I know printers who use IDEAlliance
Substrate relativity calculator or PatchTool Substrate Correction tool to
"reformulate" the CRPC-5 datasets to adjust their proofs to their printing
substrate. That's one way to avoid the question of paper tolerancing
alltogether. If your religion is derived from ISO-12647-2 then they make it
clear what the tolerance out to be for a Type 1 paper which, I think was 2
deltaEs on b*, last time I checked. So you see, you can be "creative" in
deciding that 2 dE is the tolerance you want to use.
BTW, I found out that ISO-15339 has not passed ballot...
Best / Roger
-----Original Message-----
From: Terence Wyse [mailto:email@hidden]
Sent: 9 septembre 2014 12:52
To: Roger Breton
Cc: Mike Stewart; 'colorsync-users?lists.apple.com' List
Subject: Re: Paper Question
If you subscribe to the newer CRPC (Characterized Reference Printing
Condition) references, based on "substrate-relative colorimetry", substrate
Lab is not all the critical...but like Roger said, the new GRACoL2013 "CRPC"
profile has white point closer to real-world conditions, i.e. papers with
OBAs.
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