White Balance

What is White Balance?

White balance calibrates a camera or image so that white looks truly white under different light sources: removing the orange cast of indoor lighting or the blue cast of overcast daylight to produce colours that look natural and accurate.

At a glance

Also known as
WBColour balanceColour temperature correction
Used for
Removing colour casts caused by different light sourcesEnsuring accurate, consistent colour reproduction across shotsSetting a deliberate colour temperature for creative effectMatching the colour treatment of multiple clips in post-production
Common tools
Camera white balance presets and manual kelvin settingDaVinci resolve (colour correction including white balance adjustment)Adobe lightroom and premiere pro (white balance controls)Capture one (professional colour correction)
Related terms
Colour correctionColour gradingColour temperatureColour spaceExposureRAW format

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How it compares

How it compares

Compared with related concepts

White balance and colour grading both affect the colour of imagery but serve different purposes. White balance is a technical correction process that removes unintended colour casts to establish accurate, neutral colour representation. Colour grading is a creative process that applies deliberate colour treatment to imagery to establish mood, atmosphere, and visual style: it begins where white balance correction ends. White balance correction ensures that the colour palette the cinematographer or art director intended is accurately represented; colour grading then shapes that palette toward the desired aesthetic. Correcting white balance first ensures that creative grading decisions are built on a stable, accurate foundation rather than compensating for technical problems.

Think of it like…

White balance is like adjusting your eyes after walking indoors from bright sunlight: your visual system automatically compensates for the different colour of indoor light within moments, making indoor objects look naturally coloured rather than orange-tinted. White balance does the same thing for a camera: adjusting its sensitivity to the prevailing light so that the world it records looks as your adapted eyes would see it, rather than as the unadjusted sensor technically captures it.

Pro tip

When generating multiple AI video clips that will be intercut in a single sequence, describe the same lighting colour vocabulary consistently across all prompts: not just the lighting type, but the specific quality of warmth or coolness. Clips generated with 'warm golden afternoon sunlight' and clips generated with 'natural daylight' will have different colour temperatures and will look mismatched when edited together without post-production colour correction. Using consistent temperature language across all prompts in a project significantly reduces the colour correction work required in post.

Types and variations

  • Auto white balance (AWB) uses camera analysis to automatically neutralise colour casts, convenient for run-and-gun situations but potentially inconsistent between shots.
  • Preset white balance selects from predefined settings corresponding to common lighting scenarios: daylight (5,600K), cloudy (6,500K), shade (7,500K), tungsten (3,200K), fluorescent (4,000K), flash (5,500K).
  • Manual Kelvin white balance allows the exact colour temperature to be specified in degrees Kelvin for precise calibration.
  • Custom white balance calibrates the camera from a neutral reference target in the actual shooting light for the most accurate neutral in any specific environment.
  • Creative or intentional colour cast deliberately sets an incorrect white balance to introduce a warm or cool tonal atmosphere as a stylistic choice.

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Common use cases

  • White balance calibration is a standard camera setting adjusted on every professional shoot to ensure colour accuracy under the prevailing lighting conditions.
  • In broadcast and documentary production, consistent white balance between shots maintains colour continuity across an edit.
  • In post-production, white balance correction is the first stage of colour work: establishing a technically neutral starting point before any creative grading decisions are made.
  • In AI generation workflows, post-production white balance correction harmonises the colour temperature of multiple generated clips for visual consistency.
  • In AI prompting, temperature vocabulary ( warm, golden, cool, overcast ) implicitly communicates the intended white balance register of generated imagery.

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FAQs

What is white balance in photography and filmmaking?
White balance is the process of calibrating a camera or image to represent white objects as neutrally coloured ( free from the colour cast introduced by the light source ) so that colours are accurately and consistently reproduced. Different light sources have different colour temperatures, and without white balance calibration, a camera records the colour of the light rather than correcting for it, producing orange-tinted images under tungsten lighting or blue-tinted images under overcast sky.
What is colour temperature and how is it measured?
Colour temperature describes the chromatic quality of a light source on a scale measured in Kelvin (K). Lower Kelvin values (1,800–3,500K) indicate warm, orange-tinted light such as candles, sunrise, and tungsten bulbs. Higher Kelvin values (5,500–10,000K) indicate cool, blue-tinted light such as overcast daylight, shade, and blue sky. Camera white balance settings are expressed in Kelvin and matched to the colour temperature of the prevailing light source to neutralise its cast.
What is the difference between auto and manual white balance?
Auto white balance (AWB) uses the camera's internal analysis to automatically estimate and correct for the colour cast of the prevailing light. It is convenient but can produce inconsistent results between shots as the camera continuously reanalyses the scene. Manual white balance allows the photographer or cinematographer to lock a specific Kelvin value or calibrate from a neutral reference, ensuring consistent and precisely controlled colour across all shots under the same lighting conditions.
Why do professional productions use a grey card for white balance?
A grey card is a neutral reference target ( calibrated to exactly 18% grey reflectance ) that when photographed in the actual shooting light provides a known neutral point from which the camera or post-production software can calculate an accurate white balance. This custom white balance method is more accurate than presets or auto white balance because it is calibrated specifically to the unique combination of light sources present in the actual shooting environment rather than relying on general approximations.
Can white balance be adjusted in post-production?
Yes: and when shooting in RAW format, white balance can be adjusted in post with no quality loss, since RAW files retain all the original sensor data before any processing is applied. For video and JPEG formats that have already baked in the white balance at capture, post-production adjustment is still possible but works on rendered data, which provides less flexibility and can affect image quality at extreme corrections. Shooting RAW specifically to preserve white balance flexibility is a standard professional practice.
How does white balance relate to AI image and video generation?
In AI generation, white balance is not set as a technical camera parameter but is effectively communicated through lighting and time-of-day description that carries colour temperature implications. 'Golden hour sunlight' produces warm, low-Kelvin imagery; 'overcast noon light' produces cool, high-Kelvin imagery; 'tungsten interior lighting' produces warm amber imagery. For production workflows requiring colour consistency across multiple generated clips, post-production colour correction harmonises white balance across all outputs more reliably than prompt language alone.
What is a deliberate colour cast and when is it used creatively?
A deliberate colour cast applies an intentionally 'incorrect' white balance to create a warm or cool atmospheric quality as a creative choice rather than a technical correction. Setting a lower Kelvin value than the actual light source introduces a warm amber quality; setting a higher value introduces cool blue. This is used creatively in cinematography to reinforce mood: warm, nostalgic sequences; cold, alienating environments; golden-hour warmth in studio lighting: without relying entirely on post-production grading to establish the chromatic atmosphere.
How do I ensure consistent white balance across multiple AI-generated clips?
Use identical lighting and temperature vocabulary across all prompts in a project: specifying the same quality, direction, and colour of light consistently so that all generated outputs are based on the same implied colour temperature. In post-production, apply a consistent colour correction adjustment to all clips as the first step of your grading workflow, bringing all outputs to a shared white balance baseline before making any creative grading decisions. DaVinci Resolve's clip-level and group-level grading tools make this efficient for sequences of many clips.
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