Re: Display colours with photocal on LCD
Re: Display colours with photocal on LCD
- Subject: Re: Display colours with photocal on LCD
- From: Anthony Sanna <email@hidden>
- Date: Fri, 29 Nov 2002 23:20:49 -0600
The advice I've had from Colorvision and David Tobie regarding
profiling
good LCD monitors is to set the whitepoint to native, NOT to use
Precal, NOT
to set the white and black points in Optical (simply set the brightness
beforehand to whatever suits you), and let the software do the rest.
This is interesting. Now that I HAVE read the PhotoCal manual, that's
not what it says there. It says to make sure you monitor is reset to
its "default" settings, which, in the case of my 15" ASDLCD and a
friend's flat-panel iMac that I tried to profile, seems to be D65 and
1.8 (there is an option for "native"). Did selecting "native" work for
you?
After reading all your kind advise AND reading the manual, I did get
the shoe on the right foot ...er, I mean the right foot on the puck,
but I still had some very goofy results
In the case of my LittleApple and BigSony, PreCal/OptiCal were already
installed, so I plugged the Spyder in and went to measure. I didn't
follow the instructions in regard to plugging the puck into the primary
USB port, since this machine is so heavily laden with "stuff", I'd
probably disable some other critical component if I did. So the Spyder
went into the keyboard for its first go around. This may have cause
the problems, but I don't know.
Basically - wearing the right rubber for each display - the process
went much more smoothly. HOWEVER, matching the luminance value was
absolutely impossible. On the LCD (which has black level and white
level virtual sliders), I couldn't even come close to the number
OptiCal wanted me to match (200cd/m2). With the white point slider
pegged to the right, the Spyder on registered about 80-something cd/m2
- and this was at a visual point where the screen was almost totally
white. The black copy of the control window was the only thing that
was barely visible.
On BigSony, the opposite was true. When I had hit the numbers
(95cd/m2), the display was in twilight. This was also true of the
flat-panel iMac (twilight) that I used the Spyder and PreCal on.
I READ THE MANUAL! Now what am I doing wrong?
Tony
-------------------------------
Anthony R. Sanna
SACO Foods, Inc.
6120 University Avenue
Middleton, WI 53562
1-800-373-7226
email@hidden
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