Last Updated 14 minutes ago
Filmmaking Dictionary: Number 3 / 3200K Colour Temperature
Definition
3200K is a common tungsten-lighting reference in cinematography. It describes a warm white colour temperature used for many traditional studio tungsten lamps and for camera white-balance settings intended to render that light neutrally.
An LED fixture set to 3200K aims for a similar correlated colour temperature, but it does not necessarily have the same spectral output as a tungsten filament. Matching the number is only part of matching the light.
Source Colour and White Balance
With the camera balanced around 3200K, a suitable tungsten source can appear neutral while daylight often appears cooler. If the camera is balanced for daylight, the same tungsten source usually appears warmer.
For example, an interior scene can keep tungsten practicals relatively neutral and allow blue-looking daylight through a window. Another scene may balance nearer daylight so the practicals become visibly amber. The white-balance choice affects all sources in the frame, not only the lamp being adjusted.
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Dimming Tungsten
Reducing power to a conventional tungsten filament generally lowers its operating temperature and makes the light warmer. That means a dimmed fixture may no longer match an undimmed 3200K reference. Some LED fixtures simulate a warming curve, while others maintain roughly the selected CCT when dimmed.
Test the actual source and control mode. If the scene needs less output without an intended colour change, the lighting team may choose another method of reducing or controlling the light, suited to the fixture and setup.
Mixing With Daylight
Colour-conversion filtration can move the balance of a source toward another reference, with an associated light loss. CTB is commonly used to shift tungsten toward a daylight balance; CTO shifts daylight-type sources warmer. The required strength depends on the source and target, not only the generic gel name.
Practical Checks
- Compare lamps at the output settings used in the take.
- Check green-magenta tint as well as Kelvin value.
- Review skin, costumes and set colours through the intended camera transform.
- Keep replacement bulbs and fixture modes consistent for continuity.
- Record any deliberate white-balance or mixed-source treatment.
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Frequently Asked Questions
Are all household bulbs 3200K?
No. Many domestic warm-white lamps are closer to 2700K, and products vary.
Does a 3200K LED perfectly match tungsten?
Not necessarily. Spectral differences and tint can remain even when the nominal CCT agrees.
Related Terms
- Color Temperature
- 2700K Colour Temperature
- 5600K
- CTB (Color Temperature Blue)
- CTO (Color Temperature Orange)
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