re: Why D65 on monitors and D50 on lightbox?
re: Why D65 on monitors and D50 on lightbox?
- Subject: re: Why D65 on monitors and D50 on lightbox?
- From: Roger Breton <email@hidden>
- Date: Thu, 6 Dec 2001 20:50:28 -0500
Dan,
Aren't you going to find yourself constantly recalibrating the Monitor's
White Point to match the myriad of different paper stocks you are going
to observe in the light booth?
At any rate, I would be interested in getting a copy of that PDF.
Regards,
Roger Breton
Laval Qc
Message: 15
Date: Thu, 06 Dec 2001 15:40:27 -0700
Subject: re: Why D65 on monitors and D50 on lightbox?
From: Dan Reid <email@hidden>
To: colorsync <email@hidden>
Hi Folks,
Guess y'all missed Don H. and my presentation at the GATF conference
earlier this week about this topic. PDF version of the presentation
will be
available soon on the GATF site. Email me offline if you want a copy
sent
directly.
In a nut shell here is the problem. 1) You can't calibrate your monitor
to
*spectrally* respond to D50. You can get you monitor to 5000K but not
D50.
There is a huge difference between these two specifications 2) Most, if
not
all, of the time you are not under D50 lighting! Even fancy light boxes
do
not exhibit D50 spectral response no mater what they do in filtering the
light source. 3) Printer profile color matching is based on reference
white
point of D50. So profiles are created assuming you will be under D50
lighting which is almost never the case.
The solution: Calibrate you monitor's white point visually to match the
perceived white point of the paper stock under the light booth. People
have
found 6500k to match a little closer but that's just preference and
not a
rule. Maximize your monitor luminance level so less compensation needed
at
the light booth in matching perceived intensities between the devices.
That's quick and dirty Cliff notes on the presentation.