Chapter 5

Chapter 5 Homework

2.  The color temperature of lighting sources is measured according to scale of degrees kelvin(k) which indicates the proportion of red to blue light the light source radiates. Television field cameras are set up to reproduce colors accurately only under light sources with a color temperature of 3200 kelvin. If light entering the lens is anything other than 3200 kelvin the scenes will be either too green or blue above 3200 kelvin, and too red or orange below 3200 kelvin.

6. For natural looking news scenes that replicate the look and feel of available light, almost all artificial lighting setups have one dominant light source called the key light. This light represents the function of the sun and provides the distinctive highlights and shadows in the scene. To maintain proper contrast control for video, the fill light in this case should be placed about nine feet from the subject, and in short lighting the fill light shines on the side of the face toward the camera.

7. The most frequent pattern is one dominate light source combined with a secondary light source. The goal is to make the light look as though it originates from one source, even when three lights are being used, and to light in such a way that the subjects have dimension, not flatness.

11. Two focusing quartz lights such as the Lowel Omni with stands, barn doors, dichroic filters, 650- and 300 watt lamps, and extra small chimera soft boxes.
One focusing mini light with stand, 2-leaf barn door, and diffusion filter
One folding fabric reflector to provide fill light from the primary light source, indoors or out

13.  Three light setup key light, fill light, and a backlight to help separate the subject from the background. If your lights will be more then seven or eight feet from the subject use at least 650-watt bulbs.

15.  Never touch quartz bulbs. Serious burns can result, and bulbs can be damaged from the natural oils on fingers.
Allow bulbs to cool before packing them away or setting on objects.
Serious retinal damage can occur if bright lights are used closer than three feet to human or animal subjects
Never discharge batteries completely or overcharge them