Datacolor User to User Support Group.

--- In colorvision_group@yahoogroups.com, CDTobie@... wrote:

> Correlations   to what, through what? 

I ment correlation between the tweaking of the knobs (which are 
usually accounted for in %) and the value of the white target in 
candela unit which you are trying to reach.

>The black luminance is monitor black, 
> unless you choose to compromise that to the weakest black of a 
group of 
> monitors, for exact side to side matching, and the whitepoint and 
white luminance are 
> from the ambient target, and these candela values are reached by 
manipulating 
> the hardware controls (front panel controls on most monitors). 

OK, but how do you reach a specific candela value while tweaking your 
knobs? Does CV spyder give you a measurement of black and white point 
as you tweak or do you need an extra piece of gear specificaly aimed 
at measuring a display luminance in candela which you would stick in 
front of your screen while having a white chart and then tweak which 
ever knob until you get to the right setting? How would you then take 
ambiant light into account?