Datacolor User to User Support Group.

I have Dell Ultrasharp monitor.  When calibrating with spyder 3, I want to change the white luminance.  My monitor has controls for both Contrast and Brightness.  Which should I use to adjust the white luminance.

Thanks,

Matthew Kraus

>>I have Dell Ultrasharp monitor. When calibrating with spyder 3, I want to change the white luminance. My monitor has controls for both Contrast and Brightness. Which should I use to adjust the white luminance.

On old fashioned displays (CRTs and some of the earliest LCDs) the black clipping was adjusted with the brightness control, and the white clipping was adjusted with the contrast control. It doesn't work that way on current LCDs. The brightness control now adjusts the backlight, and is used to set the display luminance. 

C. David Tobie
Global Product Technology Manager
Imaging Color Solutions
Datacolor inc. 
cdtobie@...
www.datacolor.com

On Oct 20, 2011, at 8:51 AM, "tech4x5" <mkraus3145@...> wrote:

> I have Dell Ultrasharp monitor. When calibrating with spyder 3, I want to change the white luminance. My monitor has controls for both Contrast and Brightness. Which should I use to adjust the white luminance.