David G. Smith
Steak Knife Member
Testing, testing testing is absolutely critical as stated above. When thinking about white balance in available light night scenes I think that it is important to make sure that "Normal" lights look "Right". For example, if I am in a situation that is lit by ordinary incandescent light bulbs I will white balance so that the light from those lights is white light, adjusting a little bit warmer or cooler depending on any specific look that is wanted. In a driving scene, I think that the white light reference, depending on how it is shot, would probably be the headlights of the car. So, I would white balance so that they look like white light. If you get off on white balancing to the ambient discharge street lights it might be that the head lights go way to warm, or cool. I think that would be visually disconcerting. If you are not going to be seeing anything lit by the headlights, I would go through what is going to be seen in the shots and find something that, to the normal eye, looks like it is lit by white light, like a store exterior, a lighted bill board, lights coming from a house or building or what ever and white balance so that that light looks like white light. Then, let everything else go where ever it goes. By doing in that you establish your visual reference. If you balance to get the street lights the way you want, but you drive by a McDonald's restaurant and it looks all orange or blue it might not look "Right". Adjust accordingly to the look that you want. You may not get the street lights to look exactly the way you want, but with limited resources you do the best you can.