Datacolor User to User Support Group.

After numerous adjustments and recalibrations ("learning"):

In the middle of the screen, where Spyder measures,
- my CRT is now at 6516 K 96 cd/m2 (max brightness and contrast)
- my LCD is now at 6555 K 191 cd/m2 (contrast 62%, brightness 30%)

The biggest difference was caused by brightness. Luminance really
alters the perceived "color", even if the color temp is the same and
monitors are calibrated. Is obvious to me, now.

The CRT has a slightly warmer picture, detectable e.g. in skin tones.
Actually, when I look at the greytone images in SpyderProof (or the
grey background image) then I can see a slight magenta cast on the
CRT. In many images it's pleasing. The LCD is greener.

I also tried to calibrate the LCD to 5800K and 5000K (CRT at 6500K)
but this just made the color balance (or whatever) less blue, more
yellow. I could not match the magenta-green part. I wonder why...

I seem to have a lot to learn :)

---------------------------------
NOTES: The worst thing is that the amount of magenta varies by
position on the CRT. In the middle it's slight, barely noticeable, but
it's worse in other parts. And lets not forget geometrical distortion.
And images cause horizontal magenta bands. The LCD on the other hand
is even, but the shadows turn to black if the LCD is viewed at 0 deg.
I need to tilt it to see shadow detail. Tilting then induces a color
cast at the other end of the LCD. Using Spyder tought me to see that
both my screens suck. I need a proper graphics monitor.

--- In colorvision_group@yahoogroups.com, "Rollin" <rhill3@...> wrote:
>
> --- In colorvision_group@yahoogroups.com, "str_online" <str_online@> 
> wrote:
> > I have two screens because I want to keep editors open in one and
> > music player, email etc in the other. I only work with images on one
> > screen at a time
> 
> Until recently, I ran dual monitors off a dual headed Nvida card under  
> WinXP - one was a CRT and one a Dell FP.  There was no way that I ever 
> got the two to look the same but was able to calibrate them so that the 
> FP was at least reasonable and the CRT was calibrated.  This worked 
> fine as I put the primary Photoshop screen on the CRT and placed all 
> the tool pallets, histograms,etc. on the LCD. This worked both under 
> Spyder2 and Spyder3. As an aside, the Dell LCD always looked brighter 
> and contrastier no matter what I tried to do to it than the CRT BUT the 
> CRT matched the prints (using softproof).
> 
> The CRT died and I replaced it with an Eizo monitor that I can 
> calibrate and the Dell still looks different even when they show as 
> very close in Kelvin temperature.  The Dell is just too bright and 
> there is no contrast control so just cannot fine tune it.  Again, it 
> works as the second monitor. 
> 
> I tried Lightroom but have gone back to just PS for my needs at this 
> point.  I believe that LR now supports dual monitors so you can do the 
> same thing under it - one monitor for the image and one for the editing 
> tools.
> 
> Rollin
>