Datacolor User to User Support Group.

on my attempt to calibrate my monitor, i encountered a problem with
adjust color temperature.  after my spyder did it's preliminary
readings, it was asking me to adjust the RGB sliders to align my RGB
column readings and decrease my difference rate from 4+ down to 0.5

since i was using a preset of 6500K of the monitor, i had to swtich to
manual adjustment to achieve this.  however, my problem is, my RED
slider is already maxed out (it is the column with the lowest value),
my BLUE slider (2nd highest column), i can easily bring down.  worse,
my GREEN slider is fixed by the monitor and i cannot adjust at all
(which is the column with the highest value).

questions:
1. does this mean that my monitor is incompatible?
2. since i cannot align my columns, and achieve 0.5 difference, what
will be my consequence?  spyder2PRO proceeded with its succeeding
calibration and gave me a profile that is quite reddish.  i believe
there is something wrong with this.

any help will be highly appreciated!

thanks!

On 4/16/06 7:02 AM, "hanson102" <hanson102@...> wrote:

> on my attempt to calibrate my monitor, i encountered a problem with
> adjust color temperature.  after my spyder did it's preliminary
> readings, it was asking me to adjust the RGB sliders to align my RGB
> column readings and decrease my difference rate from 4+ down to 0.5
> 
> since i was using a preset of 6500K of the monitor, i had to swtich to
> manual adjustment to achieve this.  however, my problem is, my RED
> slider is already maxed out (it is the column with the lowest value),
> my BLUE slider (2nd highest column), i can easily bring down.  worse,
> my GREEN slider is fixed by the monitor and i cannot adjust at all
> (which is the column with the highest value).
> 
> questions:
> 1. does this mean that my monitor is incompatible?
> 2. since i cannot align my columns, and achieve 0.5 difference, what
> will be my consequence?  spyder2PRO proceeded with its succeeding
> calibration and gave me a profile that is quite reddish.  i believe
> there is something wrong with this.


You haven't mentioned what type of monitor...LCD or CRT?

Unless you have a very high end LCD than it's best to avoid the RGB sliders.
Set them to 100% and let the Spyder build the profile. I have a medium
priced LCD and tried many different settings, here's what works for me:

Gamma: 2.2
White Point: Native

Luminance Mode: Measured
Black Lum: 0.30
White Lum: 130.00
Gray Balanced Calibration: ON

Just for the heck of it I did try setting the RGB sliders, but grayscales
had color banding. The above settings work well.

If you have a CRT try using the 6500 preset and don't worry about the RGB
sliders. You might have to try a few different settings until the monitor
looks good. My test is viewing a 100 patch grayscale and checking for
non-neutral patches.

Also read the help files...the latest one is in the Files section here.

On 4/16/06 7:02 AM, "hanson102" <hanson102@...> wrote:

> on my attempt to calibrate my monitor, i encountered a problem with
> adjust color temperature.  after my spyder did it's preliminary
> readings, it was asking me to adjust the RGB sliders to align my RGB
> column readings and decrease my difference rate from 4+ down to 0.5
> 
> since i was using a preset of 6500K of the monitor, i had to swtich to
> manual adjustment to achieve this.  however, my problem is, my RED
> slider is already maxed out (it is the column with the lowest value),
> my BLUE slider (2nd highest column), i can easily bring down.  worse,
> my GREEN slider is fixed by the monitor and i cannot adjust at all
> (which is the column with the highest value).
> 
> questions:
> 1. does this mean that my monitor is incompatible?
> 2. since i cannot align my columns, and achieve 0.5 difference, what
> will be my consequence?  spyder2PRO proceeded with its succeeding
> calibration and gave me a profile that is quite reddish.  i believe
> there is something wrong with this.

Guess I should have read your Subject Title better "Viewsonic CRT
Monitor"...sorry no coffee yet!

--- In colorvision_group@yahoogroups.com, CDTobie@... wrote:
>
> 
> In a message dated 4/16/06 7:03:40 AM, hanson102@... writes:
> 
> 
> > since i was using a preset of 6500K of the monitor, i had to swtich to
> > manual adjustment to achieve this.  however, my problem is, my RED
> > slider is already maxed out (it is the column with the lowest value),
> > my BLUE slider (2nd highest column), i can easily bring down.  worse,
> > my GREEN slider is fixed by the monitor and i cannot adjust at all
> > (which is the column with the highest value).
> > 
> > questions:
> > 1. does this mean that my monitor is incompatible?
> > 
> 
> If your red is too low, and can't be raised, while your green if
fixed, then 
> you can't adjust your gains manually. Choose the preset, and let the
software 
> fix it from there.


but my problem is that the spyder2PRO gives me profile that has a
reddish cast. ... doesn't this mean that the profile has an error or
something?  it should give me a good 'white' temperature but it's just
too warm.

what is the important of achieving a 0.5 difference on the color
temperature?  

> 
> C. David Tobie
> Product Technology Manager
> ColorVision Business Division
> DataColor Inc.
> CDTobie@...
> www.colorvision.com
>