I just started using the D300. Everything is great except the white balance. The auto WB is never accurate, and I don't know how to go about setting the Kelvin degrees. Does anyone know any good techniques how to get 100% accurate WB on a D300? Or maybe a chart that will help me set the WB my self? Also, I would like to know how to set a white balance from a photo but I can't find it in the manual.