
Originally Posted by
Mark Schmitt
O'Tool brings up an interesting point. As he stated, the histogram is based on a histogram of a JPEG image. Almost all DSLR cameras use an algorithom that is calibrated to the manufacturers settings. And, as JPEG images are already compressed, some data is compressed including White balance information. I, therefore, shoot exclusively RAW and set WB manually or use a custom setting based on reflected light in the shooting conditions. RAW, in post processing, is only DATA, it is not an image per se. Therefore as you change the WB settings you only adjusing DATA, which means it is non-lossy (can manipulate with out loosing information); and alows for more latitude when changing WB. General rule of thumb: in bright sunny days WB = 5300-5800K Overcast cloudy WB = 6000-6500 K; early morning late afternoon (low angle of sun) WB = 4800-5000K. Good shooting