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Title: Good!
Review: I tried setting the WB wth the expodisc on my D200 and I noticed that each has it's own strengths and weaknesses. The D200 Auto WB setting has a warm bias and that adding +2 compnsation to make it cooler would almost equal the WB done on the expodisc. During indoor and low light photography with warm bulbs on, the expodisc WB appears to be very warm and that using the tungsten WB setting of my D200 is much much better in achieving a much better color temperature. I think expodisc setting has the advantage during daytime photography whether indoor or outdoor but during night light, I find my D200 preset values much more accurate! I find the ease of use really a plus with expodisc making gray card presetting a thing of the past.
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