Datacolor User to User Support Group.

The situation your screenshots show is not one where ambient light compensation is lowering your target value, it's one where your display does not appear to be bright enough to meet the target value. Does the software ask you to adjust brightness at some point? Ifvsonto you set it to the target value? Or is this happening before that? Is possible that the software ( if it's an Apple display) is checking your brightness range automatically in advance. 

So the nex question is: can this display reach 120 candelas? Or is the software resetting the target because the screen is dimmer than the requested brightness?

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

On Jul 30, 2011, at 2:10 PM, "Wim van Leeuwen" <wimvanleeuwen@...> wrote:

> [Attachment(s) from Wim van Leeuwen included below] 
> 
> I tested one more time, my  problem is that I never have the option to accept or reject the change of the target value.
> I can only klick “OK” when the program is ready calibrating.
> See the attached screen copies.
> Have a nice weekend,
> Wim
>  
>  
> From: C D Tobie
> Sent: Thursday, July 28, 2011 5:59 PM
> To: datacolor_group@yahoogroups.com
> Subject: Re: [datacolor_group] Re: Monitor Brightness Problem - not bright enough??
>  
>  
> On Jul 28, 2011, at 11:29 AM, Lori wrote:
> 
>> The software I am using is Spyder2Pro 4.0.2. 
>> 
>> You are correct that I am calibrating in a dim room. I turned off the ambient light sensor, reset the target to 120 candelas and recalibrated with no change in the results...it again determined that the brightness of my monitor was in high 70s (78 this time) and reset the target. Although as Wim points out, the blue LED continues to flash during calibration even with that option turned off, so I wonder if it is still checking the ambient light.  
>  
> It reset the target? That should only occur when you agree to it. If your display  is only capable of reaching 78, then you'd end up at 78, but not with a reset target... if the display is capable of more, then it should go for the target value of 120. I'll see if I can reproduce this, but I don't have any Dells here... what model are you using?
>> 
>> Interestingly enough, I am also using a Dell flat panel. 
> 
>  
> C. David Tobie
> Global Product Technology Manager
> Imaging Color Solutions
> CDTobie@...
> Datacolor
> www.datacolor.com/Spyder
>  
> 
> <image003.gif>
>  
> 
> Attachment(s) from Wim van Leeuwen
> 
> 2 of 2 Photo(s)
> 
> 
> Spider1.JPG
> 
> Spider2.JPG
> 
>