Re: Monitor White Point Confusion
Re: Monitor White Point Confusion
- Subject: Re: Monitor White Point Confusion
- From: Nagy Péter <email@hidden>
- Date: Tue, 05 Mar 2019 08:46:00 +0100
Hi Lou,
What you would like to do is IMHO possible in theory, but you have to take into
account the capabilities of the math model and the devices you use. If you try
to mimic the actual printed piece on your screen (meaning you switch to
soft-proof mode in Photoshop) you’re working in the 8-bit realm of the current
graphics software and device drivers. If you’re far away from the target (eg.
on a screen calibrated to a white point of 6500K) the color management engine
has to perform a large correction to achieve the desired result. Measurement
and profiling errors add up, and the color you see on screen will not be
perfect.
On the other hand, your original approach (calibrating to 5700-5800) is almost
perfect, as that’s the ‘perceived’ white point of today’s OBA-stuffed coated
papers under 5000K lighting. In this case, the color management engine performs
a relatively small conversion on the white point, so the errors will be smaller
or negligible.
Until we don’t have 10 or more bit ‘deep’ device drivers and monitors (and work
with 16 bit images in Photoshop), the best you can do is to calibrate to the
closest perceived white. Another consideration might be to employ displays
which are more conservative on the contrast; we don’t need 1:10000 for soft
proofing.
Kind regards,
Peter Nagy
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