Datacolor User to User Support Group.

On May 31, 2009, at 10:31 AM, rickbehl wrote:

> Quick question regarding monitor calibration with a Spyder3 Elite. I  
> have realised that there are some colour settings within my graphics  
> card settings which can be used to change the gamma, brightness and  
> contrast. My configuration is:
>
> Dell 2709W
> Windows XP
> ATI Radeon X800 XT
>
> Can someone please advise what if anything I should do to these  
> settings before I start calibrating the monitor?

Absolutely nothing. In fact, if you have a videocard utility loaded,  
unload it. The problem is that videocard companies tend to forget that  
the LUTs in the card are used for color management purposes, and offer  
tools for making adjustments to the LUTs; which trashes the LUT data  
that the color management software has place in the VLUTs... So stay  
as far away from such tools and functions as possible, if you are  
color managing your displays!

C. David Tobie
Global Product Technology Manager
Digital Imaging & Home Theater
CDTobie@...