Chapter: Image Acquisition
Topic: Lighting
At some point you?ll want to add some color or soften your lights, so you?ll need something to put in front of the lights. Things to remember are that gels add color or correct color temperature, and diffusion softens the light.
http://www.dvinfo.net/articles/lighting/spears2.php
TAGS: Work Lights, Shower Curtain, Chinese Lanters, Halogen, Gel, Diffusion