White Balance adjustment primarily affects what aspect of an image?

• A. It increases brightness
• B. It changes contrast
• C. It reduces saturation
• D. It corrects color casts

Answer: (D)

White balance adjustment primarily targets color accuracy by correcting color casts produced by the lighting in which a scene is captured. Different light sources have different color temperatures, which can make whites look yellow, blue, or green. By adjusting the color temperature (and tint), the camera interprets whites as truly white and renders colors more naturally.

This is different from changing how bright the image is (exposure) or how bold the tones are (contrast and saturation). White balance doesn’t aim to brighten or darken the scene or to push colors more or less saturated; it fixes the overall color balance so that the scene’s colors appear as they would under neutral light. In practice, you can set the WB with presets for common lighting (daylight, tungsten, fluorescent, etc.) or use a custom WB with a gray card to achieve accurate results, and you can fine-tune it later in RAW if needed.