Datacolor User to User Support Group.

On Nov 16, 2009, at 11:44 AM, drillguy@... wrote:

>

 >>Using a MacBook Pro with OS 10.4.11. It's 15.4 inch display - not  
sure of video card model.

Videocard model is not really an issue on the Mac.

  >> It's one of the original MacBook Pro with an upgraded hard drive.  
Not sure what you mean by what standards I am calibrating to. Ambient  
light is natural light coming through a window in my office - not  
direct light.  Actually, it was cloudy so bright but not very bright.  
Don't know if that helps.

Too bright for serious photo editing, but certainly not the cause of a  
major color cast.

 >>I am plugged into the only USB port on the right hand side of the  
MacBook Pro.  The only other one is on the left side.

Again, using a MacBook simplifies this, and in most cases eliminates  
unpowered hubs. So you should be fine as long as that port works for  
other powered devices. Wouldn't hurt to try from the other USB port  
next time.

 >>Not using the ambient light wizard.

It would tell you your light level is high, and if you left it to  
monitor ambient light, it would complain that it changes over time,  
but thats normal in your kind of uncontrolled conditions.

 >>Trying to calibrate for photography.

Well, you'll get better consistency in a dimmer room with less natural  
(thus variable) light. But again, thats not the issue here.

No detailed description of your calibration results, or exactly when  
the cast occurs, or if turning the correction LUTs on and off in  
SpyderProof makes it go away (in which case its the LUTs, not the  
Profile). If the screensaver came on during calibration the first  
time, this would mess things up until you do a full recalibration from  
the menu. You could start by trying that, and using the other USB port.

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