Now we're going to get a bit more experimental and really start to push these colors around. I talked briefly about setting your camera's white balance to neutral white and used my NORMAL scene as an example. There may be times when you don't want a neutral image, but rather are going for a warmer or colder feel. One way of doing this is to white balance your camera with colored gel in front of the lens. If you want a warmer image for example, placing a blue gel in front of the lens while you white balance will trick the camera into thinking that the white chart is blue. It will compensate by increasing red until it calculates proper white. Once white balanced, take the blue gel away and voilà!, your scene will be warm. Varying intensities of gel as well as varying colors will affect how your camera compensates.