In video, television and film production, the quality and quantity of light are essential to the delivery of proper exposure and color to the image. Videography and cinematography are arts of motion picture photography. They create moving pictures by recording radiation on a light-sensitive medium. The light-sensitive medium is either a photographic film or an electronic sensor which can be a charge-coupled device (CCD) sensor or a CMOS active-pixel sensor. The sensor in a digital video camera contains a great number of pixels, which, like the photoreceptors in our eyes, serve to collect photons of light. The light-sensitive photodiode within each pixel produces an electrical potential proportional to the received light intensity. Over individual pixels on the image sensor three filters that are sensitive to red, green and blue wavelengths are placed to sample color information. Effective lighting is the key to success in videography, TV broadcasting and cinematography. It is necessary to control and manipulate light correctly in order to get the best exposure, contrast, and visual perception of color.
at the Open Lighting Product Directory (OLPD)
