Re: monitor calibration D-50, D-65 ???
Re: monitor calibration D-50, D-65 ???
- Subject: Re: monitor calibration D-50, D-65 ???
- From: Chris Murphy <email@hidden>
- Date: Mon, 2 Jun 2003 10:32:48 -0600
On Monday, June 2, 2003, at 09:28 AM, Paradox Photography wrote:
The 'problem' seems to happen on both my 2 year old Apple 17" CRT
monitor calibrated with a Spyder
and a less than year old 15" Apple laptop visually calibrated.
That's pretty bizarre. I certainly wouldn't expect such results with
either kind of display because I have similar displays myself. But
therein lies the point. If it's working for you in your environment I
wouldn't worry too much about it. What is the ambient lighting in your
environment?
Well I've come to that conclusion myself but where are the 'rules' in
color management to explain this?
It seems we haven't come very far in the last few years if the answer
is still "find out what works for you"!!
I disagree. It used to be the case that the "rule" was: always
calibrate to 5000K or D50. Then the new rule was: always calibration to
6500K or D65. Trying to squeeze human vision into such boxes will
inherently lead to exceptions to the rule. Also we've learned to accept
that today's color management doesn't account for many things. There
isn't a profile for the human end user. ICC profiles don't contain
luminosity information, and CMS's don't deal with it at all.
I think if you try to shoe horn everything into a rule, you'll find
something that breaks the rule. Someday hopefully we will have a big
enough box and fast enough computers to better model human vision.
This is my main question my user environment doesn't seem to change
the 'problem'.
I don't dispute the principle that viewing conditions alter one's
color perception but........
the print outputs are yellow when I calibrate at d-65 and correct at
d-50.
This is regardless of viewing conditions (5000K in my office,
florescent in my kitchen, or indirect daylight in my back yard).
Monitor and print colors match or don't match depending on monitor
color balance not ambient lighting conditions.
<shrug> I'm suspicious of the validity of the output profile if your
output looks anything like a D50 calibrated display while you're
sitting in your back yard. It sounds to me like it's creating
separations that have too much yellow in them and a yellow display is
compensating for it.
Chris Murphy
Color Remedies (TM)
www.colorremedies.com/realworldcolor
---------------------------------------------------------
Co-author "Real World Color Management"
Published by PeachPit Press (ISBN 0-201-77340-6)
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