Photography and film both deem it necessary to get the proper amount of lighting. A device called a "Footcandle Meter", commonly referred to as a "Light Meter" can be used to measure the "footcandle" or "lux", the "lumens" and the "candlepower" of a light source. With the knowledge of these key lighting elements, you can adjust your lighting, flash and camera aperture for optimal camera exposure depending whether the subject is predominantly light...