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DPChallenge Forums >> Tips, Tricks, and Q&A >> White point control Question........
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08/10/2005 01:37:04 PM · #1
What white point do people use for their monitors when submitting to challenges and viewing challenges?

I read that 9300k for Monitors, 6500k for TV, 5000k for printing. Is this about right?

I have also read that 6500k is for photograph viewing.
08/10/2005 01:37:48 PM · #2
I have no clue... does that matter?
08/10/2005 02:13:15 PM · #3
Monitor calibration can be kind of tricky, as it depends on the lighting in the room and other things. I did a very casual manual calibration on mine, which is closer to 9300 than anything lower, but pumps the blues slightly as well, then I adjusted the gamma slightly.

In terms of submitting for challenges, assume that your viewers will, on average, have a poorly calibrated monitor in terms of color, and will be viewing way on the dark side, so if you have a lot of your image dependent on shadow detail, don't submit it to DPC.
08/11/2005 01:21:16 AM · #4
Yes it matters -- the same as setting the White Balance on your camera matters. And it is set dependant upon the same thing -- the light in the room the monitor is in.

An untested idea I just had for getting close to the right temperature adjustment. Turn the monitor off and tape a white piece of paper to it. Using auto white balance take a take a picture of this with whatever lighting you normally have on. Load the picture and look in the EXIF data for the temperature the White Balance was set at. Setting the monitor to that temperature or as close as possible should get fairly close.

David
08/11/2005 02:35:45 PM · #5
Originally posted by Britannica:

Yes it matters -- the same as setting the White Balance on your camera matters. And it is set dependant upon the same thing -- the light in the room the monitor is in.

An untested idea I just had for getting close to the right temperature adjustment. Turn the monitor off and tape a white piece of paper to it. Using auto white balance take a take a picture of this with whatever lighting you normally have on. Load the picture and look in the EXIF data for the temperature the White Balance was set at. Setting the monitor to that temperature or as close as possible should get fairly close.

David


I actually use a spyderPro2 monitor calibration device. I set my monitor to 6500k, but that might not be what it should bet set at. Maybe 9300k like almost everyone's monitors?
08/11/2005 02:47:45 PM · #6
Originally posted by mpemberton:

I actually use a spyderPro2 monitor calibration device. I set my monitor to 6500k, but that might not be what it should bet set at. Maybe 9300k like almost everyone's monitors?

That is essentially the same as ignoring the monitors temperature setting -- so it won't matter what it is set at. The Spyder will adjust the temperature itself thru the profile by adjusting individual color channels. With many monitors not allowing precise temperature adjustments, doing it themselves is the only way to guarantee the correct setting.

David
08/11/2005 06:02:48 PM · #7
Originally posted by Britannica:

Originally posted by mpemberton:

I actually use a spyderPro2 monitor calibration device. I set my monitor to 6500k, but that might not be what it should bet set at. Maybe 9300k like almost everyone's monitors?

That is essentially the same as ignoring the monitors temperature setting -- so it won't matter what it is set at. The Spyder will adjust the temperature itself thru the profile by adjusting individual color channels. With many monitors not allowing precise temperature adjustments, doing it themselves is the only way to guarantee the correct setting.

David


The monitor has four settings. Text, Movie, Photo, ?... Each has a different setting for k. I made sure the Photo one is at 6500k. Not sure if that is right.
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