White Balance vs Color Cast adjustments

[pbziegler]

I want to make sure I understand the distinction. Is it correct to say that White Balance is a global adjustment to correct the entire image for the effects of the light source while color cast corrections are local adjustments to correct specific areas of the image to correct for color imbalances?  White Balance is corrected in ACR globally. Color cast corrections are made in PS by adding complementary colors to that specific area. Do I have that right?  And one more question in that regard. You teach making selections before adjustments in the Levels Course but in the Color Cast Correction article you start with a Photo Filter layer, invert it and paint in the area you want to correct. Do you do it this way so that you can build up that correction by using a very low opacity brush?

[Damien Symonds]

Correct on all counts, yes.

[pbziegler]

Good to know