Re: Display colours with photocal on LCD
Re: Display colours with photocal on LCD
- Subject: Re: Display colours with photocal on LCD
- From: "Bob Frost" <email@hidden>
- Date: Fri, 29 Nov 2002 10:00:05 -0000
Stefan,
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. I'm
using a Formac Gallery 20" DVI without any problems that I can see, and
David Tobie gets good results with the Apple Studio LCDs.
The only problem I have is with my graphics card (using a PC); nVidia Ti4600
cards reset the color after Optical startup has done it's correction! Until
Colorvision and nVidia find a solution, I have to put the Optical Startup
program on my desktop, instead of in the Startup folder and run it after
bootup has completed. This may not be a problem with Macs.
Bob Frost.
----- Original Message -----
From: "Stefan Ohlsson" <email@hidden>
>
>
I'm doing quite a lot of house calls to photographers to help them
>
out setting up their digital equipment recently. When I've been using
>
the Spyders that most of the photographers have bought, the results
>
have been very mixed. Sometimes I'm able to come up with a monitor
>
that seems to be OK, but most of the time the results are insecure.
>
Many times the results have changed quite a lot when I reprofiled the
>
monitors.
>
>
I decided to make a test to see why. I used 4 different Spyders, two
>
new ones and two a little older. I've profiled one CRT monitor and
>
none of the Spyders produced the same results. Then I tried a LCD
>
monitor, the Eizo Flexscan L685EX, which is the best LCD monitor I've
>
been working with. But the results profiling the LCD monitors were
>
even more disappointing. Colors changed even more when I tried the
>
different profiles made on the LCD monitor.
>
>
One of the major problem seems to be the lack of low light
>
sensitivity. It's almost impossible to get a good reading when you
>
are setting the black point luminosity. With most of the Spyders I
>
got no reading at all, then suddenly the readout in Optical jumped to
>
a reading of .8 cd/m2 or even higher.
>
>
I had none of this problems using Optical and DTP92 on the CRT. As
>
the DTP92 can't read a LCD monitor, I used the EyeOne and ICCDisplay
>
on the Eizo. This two combinations produced the same results over and
>
over again, something I wasn't able to do with the Spyders I was
>
using.
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