Datacolor User to User Support Group.

Your brightness adjustment is probably just the ticket. You could do  
it a bit more scientifically by creating a new target with measured  
white luminance, but it sounds like you've got it covered the way you  
did of already.

C. D. Tobie
WW Product Technology Mngr.
Digital Imaging & Home Theater
DataColor.com
CDTobie@...

On Aug 24, 2008, at 5:54 PM, "bill_hansen20012001" <b2hansen@... 
 > wrote:

> Mr Tobie –
>
> Thanks again for your prompt reply. I do indeed have the Spyder2Pro
> (SN 201710-898280-118715) and I did leave the LCD baffle in place
> when I profiled the monitor.  As always, I made sure that no ambient
> light could fall on the LCD screen (and actually, that there was
> almost no ambient light to begin with).
>
> For what it's worth, I've found that by lowering the monitor's
> Brightness to about 60% during the setup of the Spyder2Pro, the
> brightness and color problems almost completely disappear.  With
> this change, edited images look essentially the same as they looked
> on my old CRT monitor, but of course there is some "eyeballing"
> involved.  Is this lowering of LCD brightness a useful way to
> proceed?
>
> I do not know how to "create a target with a white luminance of
> about 100 to 125 candelas."  If it is necessary for me to create
> such a target, can you direct me to instructions on how to create
> such a target, AND how to use it with the Spyder2Pro?
>
> My LCD monitor has controls for Brightness, but does not have a
> Backlight control.  Your direction to tell the software that the LCD
> has a backlight control and NOT a brightness control may indicate my
> ignorance of LCD monitors. Is the control, indicated as "Brightness"
> in the LCD firmware, actually a Backlight control?? (Makes sense
> that it could be.)  I've experimented with choosing "Backlight
> control" instead of "Brightness control" and I don't see any
> difference when attempting to set white point or black point, or in
> the resulting profiles.
>
> Thanks – Bill Hansen
>
> *********************************************************************
> **************************************************************
>
> I had trouble calibrating my new LCD monitor with the Spyder2Pro,
> with the following difficulties:
>
> Images, previously edited in PS CS3 looked "perfect" on my old
>> profiled CRT monitor. On LCD, profiled with Spyder, those same
>> images look too bright by about 5-10%, and are too blue by about
>> 15%.
>
>
> CD Tobie replied:
>
> Your issue with brightness and blueness is caused by the display
> being
> too bright. Try the ambient light feature, or simply create a target
> with a white luminance of about 100 to 125 candelas. That assumes
> you
> own Spyder2Pro; if not, then dim the LCD before calibrating. Be sure
> to tell the software your LCD has a backlight control NOT a
> brightness
> control!
>
>
>
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