Discussion

Spraying was repeated a number of times, with the aperature of the video camera changed with each pair of sprays. Several sets are presented in each segment.

The color of the flame "seen" by the camera will change depending on the amount of light presented to the camera. It is probably impossible to capture the full dynamic range of the light from flames with standard video equipment. If the camera's aperature were set on "automatic", some portions of the image would generally be overexposed and other portions would be underexposed. By manually controlling the aperature, one can more easily see those portions of the flame that would be underexposed and overexposed.