RE: ISO 3664:2009 lighting standard
RE: ISO 3664:2009 lighting standard
- Subject: RE: ISO 3664:2009 lighting standard
- From: Roger Breton <email@hidden>
- Date: Wed, 04 Jan 2012 20:12:20 -0500
I have switched and found no issues whatsoever with the new lamps. Most of
the publications papers we print have little or no optical brighteners. We
use Just-Normlicht lamps, btw.
Best / Roger
-----Original Message-----
From: colorsync-users-bounces+graxx=email@hidden
[mailto:colorsync-users-bounces+graxx=email@hidden] On
Behalf Of Todd Shirley
Sent: January-04-12 1:52 PM
To: ColorSync Users Mailing List
Subject: ISO 3664:2009 lighting standard
As I'm sure most of you know, there is a (relatively) new specification for
D50 viewing conditions: ISO 3664:2009 read more at
http://www.idealliance.org/specifications/swop/
I was wondering if anyone has actually made the full switch to new lamps and
what (if any) issues have arisen?
We have GTI booths & lights and the upshot for us has been that there is
significantly more UV content in the light than in the older lamps. Because
most of our proofs are on inkjet proofing stocks that have no OBAs, those
proofs have an almost identical appearance as the do under the older lamps.
However, since most press stocks have a significant amount of OBAs, the
difference between proof and press is now more pronounced. I realize that
this may be a more "accurate" representation of the difference between
proofs and press, but as far as clients are concerned, our proofs are now
*less* accurate.
It seems that the de facto standard for high-end inkjet proofing stocks is
that they have no OBAs, which makes proof to proof matching easier (my
certified GRACoL proof matches your certified GRACoL proof), but makes proof
to press matching harder. The new lighting standard just makes this
situation more obvious. I was wondering if anyone uses proofing stocks with
OBAs specifically to try to match closer press stocks, and if so, how's that
working out for ya?
Any advice, stories or comments surrounding these issues would be greatly
appreciated!
-Todd Shirley _______________________________________________
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