Re: CV's Optical,PreCal, and Spyder for CRT/LCD
Re: CV's Optical,PreCal, and Spyder for CRT/LCD
- Subject: Re: CV's Optical,PreCal, and Spyder for CRT/LCD
- From: David Miller <email@hidden>
- Date: Sun, 19 Jan 2003 10:01:53 -0800
on 1/18/03 6:49 AM, Bertho Boman wrote:
The single program would have three buttons:
1: Adjust monitor (PreCal). Use the Spyder to set both the
black-point
and the guns.
2: Linearize (Calibrate)
3: Profile
Can't say I disagree at all! This is why I'm finding that more and more
clients are shelling a bit more money out for products like the LaCie
Blue
solution of the Sony Artisan. Usually one or two buttons to push and
you're
done. ALL the hoops are eliminated since we are dealing with "smart
monitors" that communicate via a USB cable to a display that can set
itself
(Goodby PreCal). I used to be a fan of Optical but it's become as you
pointed out pretty convoluted. Why PreCal and Optical have to be two
applications years after being introduced is questionable. Too many
Bells
and whistles that don't do anything but confuse most users...
Andrew Rodney
I have been following "Repetitive Calibration with Optical" with great
interest since I just became a reseller of the CV line of
hardware/software, and therefore must be able to demo as well as teach
how to use these products. As Roger Breton and C. David Tobie know,
since they have responded to my inquiries, this PreCal and Optical
stuff is not smooth working for me.
Actually, I am delighted that someone else besides me is "vocal" about
this hardware/software by CV. I thought I was alone.
I do have the i1Pro with i1Match. When I profile dual monitor setups,
regardless of whether it is a CRT/CRT or LCD/CRT combination, the
displays appear the same. And when I duplicate an image and put them
on both screens, the image appears the same.
It so happens that when I begin repeating the profiling of these same
setups with the Optical and/or PreCal with the Spyder, I find the
luminance determined by the GretabMacbeth combination gives me 0.25
black and 43 white, as read by the Optical software and Spyder, before
I have touched the PreCal.
This 43 luminance is not the maximum of the monitors, just what the
GretagMacbeth software/hardware had determined.
The other problem I still have not resolved is the LCD absolutely
cannot match the CRT with the combination dual monitor setup I have.
But the GretagMacbeth solution does! Go figure. I trust the
GretagMacbeth solution. I cannot say the same for the CV solution.
And, if I am to resell the CV solution I should completely trust it.
One last note. At my lab, I have repeatedly profiled, on one station
only and with the CV solution, a LaCie19Blue(no roman numerals) and a
Sylvania F77. I use 5000K, not native, "precision mode", and chose
not to use PreCal, to keep the playing field even. The LaCie19Blue
has no RGB gun controls in the OSD. The Sylvania F77 does. And the
Sylvania F77 is a cheeeap monitor. It is because the LaCie19Blue has
no RGB gun controls in the OSD I decided to go without PreCal.
So what happens, is, the monitors will end up displaying the same.
But the luminance will change, wander, be inconsistant Sometimes the
luminance will be 75, sometimes 85. And sometimes for whatever
reason, I cannot get the luminance up to 80. Does not make sense.
So, I will use the lower luminance on both monitors, and the displays
will appear the same.
CV tech support, bless their hearts, have not been able to help me
resolve these issues, especially the LCD/CRT issue. They give an
answer, which I don't remember, because it made NO sense at all.
David B. Miller, Pharm. D., member, Millers' Photography L.L.C., d.b.a.
Spinnaker Photo Imaging Centers, Bellingham, WA
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