What is the primary function of white balance in digital cinema color management?

• A. Exposure and overall brightness
• B. The scene's color temperature so whites appear neutral
• C. Gamma curves are applied to the footage
• D. The frame rate is changed

Answer: (B)

White balance fixes the color cast created by lighting so whites read as truly white on camera. Different light sources have different color temperatures—tungsten light can look warm (orange), while daylight can look cooler (blue). By setting the camera’s white balance to match the scene’s color temperature, the sensor interprets white as white and adjusts all colors accordingly, giving accurate skin tones and neutral whites throughout the shot. This helps ensure consistent color across shots and makes later color grading more predictable. It’s not about how bright the image is (exposure), nor about how the image is mapped in shadows and highlights (gamma curves), and it doesn’t change how many frames per second the footage records (frame rate).