Digital BW, The Print

In a message dated 1/30/07 2:03:13 PM, e.neilsen2@... writes:


> Maybe we need new standards.
> 

You may be a bit late, but please send your input to IPA Standards committee 
members David McDowell of Eastman Kodak <mcdowell@...>, and Larry Warter 
of Fuji Photo Film, USA <fujiwarter@...>. They are dealing with a draft 
of the ISO 3664, Viewing Conditions for Graphic Technology and Photography, 
which is currently set to institute new standards, ones that will set D50 as the 
viewing light standard. I can't imagine that you will change their minds, but 
your comments should be heard.

Interestingly, it will also list D65 as the monitor standard. This D65 
monitor thing is something Bruce Fraser and I started agitating for some years ago, 
that has really taken root since then. Its really a matter of ambient light 
level: D50 (5000k) was great for monitors in the CRT era, with prepress 
correctors in the dark, but D65 (6500K) is much more appropriate for brighter LCDs in 
moderate lighting. ColorVision published an appropriate process some time ago 
for converting the required D50 standard in ICC monitor profiles to a D65 
monitor whitepoint in a way that would use the required transform and give 
reversable results, which has since become the standard for virtually all monitor 
calibration adjustment. So its now possible to use whatever whitepoint suits your 
ambient lighting level, or your paper white, if you want to get literal about 
it, and get good proofing results in a D50 light box.

See link below for more info on ISO 3664:

http://www.ipa.org/bulletin/articles/view_cond.php3

C. David Tobie
Product Technology Manager
ColorVision Business Unit
Datacolor Inc.
CDTobie@...
www.colorvision.com


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