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Tungsten lighting is a term used by photographers to distinguish from fluorescent lighting or strobe lighting. Tungsten is a type of incandescent lighting using a bulb with a filament made of the metal tungsten, as opposed to, say, carbon or platinum. Unless you have switched to compact fluorescents, most of the lighting in your home is tungsten. In still Photography, tungsten lighting gave studio photographers greater flexibility than the classic north sky light. Tungsten lights reigned supreme for many years in commercial studios until the introduction of strobes (or speed lights) and some workers still prefer tungsten for its controllability (what you see is what you get). For television and cinematography tungsten is essential.

Tungsten lamps specifically for photographic purposes are made to very tight tolerances since most photography or cinematography today is done in color. For photography, tungsten lamps are produced in two types, having very specific "color temperatures:" type B lamps, the most common, have a color temperature of 3200 degrees Kelvin (3200°K); type A lamps had a color temperature of 3400°K and were matched to Kodachrome Type A (ASA/ISO 40). This material is now discontinued and so far as I know there are no other Type A still stocks on the market.

Without getting too tediously technical we should try briefly to explain "color temperature:" The higher the color temperature, the bluer the light. The lower the color temperature, the more yellow to red the light. Noon daylight (sun shining, no cloud cover) in the area of the globe between the tropics is considered for practical purposes to have a color temperature of 5000 degrees Kelvin (5000°K). "Daylight" color films, or your default setting on your digital camera, are balanced for ±5000°K. Electronic flashes ("strobes" or "speed lights" or the little strobe on your camera) have a nominal color temperature equal to noon daylight. All other light sources have different color temperatures and theoretically require some sort of compensation to render "true" color, either by filtering the film or the light or by changing the film or settings on the camera. If you are using studio quality tungsten lighting, you should also use a type-B incandescent balanced film, or set your digital camera for either AUTO or incandescent. In practice, plain household tungsten lighting (color temperature around 2800°K) will yield a perfectly acceptable photograph with a type-B film or with your digital camera set on auto or incandescent.

Most 3200°K studio lamps used today are tungsten halogen. Halogen lamps have quartz envelopes and are filled with a halogen gas such as iodine or bromine. The gas combines with the evaporated tungsten from the filament during use and helps some of the tungsten plate back onto the filament when it cools, lengthening the life of the lamp. The quartz envelope does not darken over the life of the lamp, so the color temperature does not significantly change, nor does its brilliance.

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โˆ™ 2008-12-24 16:58:10
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Q: What is tungsten lighting?
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Related questions

Why do you use tungsten in electric bulbs for lighting?

tungsten is having high melting poing when compared to other metals


What is an Example of incandescent lighting?

Any fixture that takes a tungsten filament bulb is an example of incandescent lighting.


What is the least effective way of dimming tungsten lighting for colour photography?

Rheostat. Dimming by rheostat changes the colour temperature of the light


Is chemistry involved in stage lighting?

Chemistry is not something you take into account when working with stage lighting. However, the actual lamps(bulbs) have some type of gas in them(Tungsten or whathaveyou) which reacts with the electricity to glow.


What varieties of lights are available?

While fluorescent lighting is the most common type of general purpose lighting found in commercial settings, a wide range of options are available such as Incandescent,Tungsten-halogen,Compact Fluorescent lamps


Why is tungsten used almost exclusively as filament for incadescent lamps?

Because of its ability to stay solid at high temperatures. However tungsten is hardly used exclusively for lighting purposes. Its presence can be found in really hard metallic alloys, electrons, lubricants and as a cheap gold "substitute" in jewelry due to the similar densities of gold and tungsten.


What is the composition of tungsten?

Tungsten is an element and so is composed of tungsten atoms


Is tungsten magnetic?

Tungsten is not Magnetic :(


Is tungsten flammable?

Tungsten is NOT flammable.


Symbol of tungsten?

Tungsten is W


Can tungsten dissolve?

can you dissolve tungsten


Does tungsten have an odor?

No tungsten does NOT have an oder.

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