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Why is the flat screen's WB shifting on me? [pic]

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Why is the flat screen's WB shifting on me? [pic]
by Sam Carleton on Jul 22, 2009 at 4:01:43 am

I am coming to you all with a photography lighting question. There are two reasons, lighting is equally important in both mediums (video and still), and it has to do with flat screens and projectors in the shot:

Ok, I have been around photography a long time and fully understand the concept of color balance. I know, or at least think I know, that most flat panel displays are balanced for 5000K. The stage lights at church are, of course, 3200K.



What I don’t understand is why in one frame the flat panel display in the background looks green and the next frame, 3 seconds later, looks good, though a little blue.



Do flat screens shift in color balance the way florescent lights shift? Is there another reason for this?



Most importantly, has anyone ever had to go in and balance lighting to work with displays and/or projectors that will also be in the shot? I would like to go talk to the person in charge of the lights and displays/projector and see what might be done to improve things a bit, but I want to walk in having some answers.


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