White balance controls how your camera interprets color temperature so that white objects actually look white rather than shifted toward orange or blue. Most of the time Auto White Balance does a reasonable job, but certain lighting reliably confuses it.
What It Actually Means
Light sources have different color temperatures, measured in Kelvin: candlelight and incandescent bulbs skew warm and orange, shade and overcast skies skew cool and blue, and daylight sits closer to neutral. White balance shifts the image to compensate for the source light’s color cast so neutral tones render correctly.
How to Choose White Balance
- Use Auto White Balance for mixed or changing lighting, such as walking between indoor and outdoor spaces.
- Use a matching preset, such as Tungsten or Cloudy, when lighting is consistent and Auto is producing an obvious color cast.
- Use a manual Kelvin value for full control in a fixed lighting setup, such as a studio with known bulb temperature.
- Take a custom white balance reading off a gray or white card when color accuracy is critical, such as product photography.
- Shoot RAW when possible so white balance can be adjusted after the fact without quality loss.
Common Mistakes
- Trusting Auto White Balance under mixed light sources, such as a room lit by both window light and warm bulbs, which can produce inconsistent results shot to shot.
- Not correcting an obvious color cast because it looks fine on a small rear screen but is visible on a larger display later.
- Forgetting that a custom white balance reading only stays accurate as long as the lighting does not change.
When White Balance Matters Most
Skin tones are especially sensitive to white balance errors, so portraits under artificial light benefit from extra attention. Product and food photography for commercial use also demand accurate white balance since color mismatches are highly noticeable to viewers.
Frequently Asked Questions
If you shot in RAW format, white balance can be adjusted after the fact with no quality loss. JPEG files have much less flexibility for correction.
Incandescent and some warm LED bulbs have a low color temperature that Auto White Balance sometimes fails to fully correct, leaving a visible orange cast.
Photographing a neutral gray card under your current lighting lets you set or correct white balance precisely, since the camera or editing software knows that card should render as neutral gray.