Re: Funny thing
Re: Funny thing
- Subject: Re: Funny thing
- From: "Pablo Roufogalis L." <email@hidden>
- Date: Thu, 19 Sep 2002 09:59:29 -0400
Hello C. David and thanks for your reply.
At 09:28 AM 9/19/02 -0400, email@hidden wrote:
Thats the telltale sign of a monitor whose native whitepoint is mismatched
from its calibrated whitepoint. Tell me, if you are choking the blue gun back
down with the Video LUTs, why do you feel that running it high in the front
panel settings increases the final luminance?
The Samsung monitor involved does not have gun control and only two
settings, 9300 and 6550. I couldn't get past 69 Cds with the preset at
6550K but reached almost 90 at 9300K.
I'd guess that when the monitor is set at 9300 from 6500 it does more that
just boost the blue gun.
Looking at the info table from OptiCal I see that both green and blue are
choked by the LUT, not just blue.
See the correction curves here:
http://www.aretecnica.com/colorvision/images/ccs.gif
Is the front panel 6500 setting
actually a bit low in the green and blue? One angle on this is to set the
whitpoint at the matching preset, or the one above it the matching one isn't
quite high enough, and this may be your case. Brightness, if the device is
not a dim glow, is set via luminance, not white point, which is merely a
balance of the RG&B channels.
The monitor is sort of a Charlton Heston, no gun control.
Many thanks and regards.
Ing. Pablo Roufogalis L.
Aretecnica
email@hidden
http://www.aretecnica.com
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