Continuous Lighting or Hot Lights
Continuous lighting or hot lights are Tungsten, Tungsten-Halogen or Metal Halide Iodide (HMI) fixtures that stay on for long periods of time and produce heat. Continuous lighting is a must for filming, video or when using scanning digital backs. You can choose from assorted types of fixtures and bulbs in continuous lighting. If you understand their characteristics and functions, it will be easier to buy what you need. Because the lights stay on you can see the effect they give.
Hot lights are relatively easy to mix and color balance with other types of lighting, such as ambient daylight, fluorescent and household light by using colored mylar "gel"or glass filters.
- Basic tungsten systems use general inexpensive lamps. You can use tungsten film to balance the color temperature of your lights or use a filter on the lamp or camera.
- Metal halide lamps need a ballast for operation. They are more efficient but more expensive than tungsten. They can produce light equal to daylight and you don't need filters.
- HMI lamps range from thousands of watts for large areas to less than 100 watts for camera use.