Manipulating light: Tools, techniques, and the behavior of light
Achieving an effect with lighting has as much to do with the angles, distances, and lighting materials as it does the lights themselves. This chapter covers the principles for physically manipulating the shape, intensity, and quality of light after it has left the front of the fixture. Some of this work, like setting flags, frames, and break-up patterns in front of lights, is generally the responsibility of the grip department, but understanding the principles involved is useful for everyone doing lighting.
