Which device regulates camera signal elements such as focus, white balance, and color balance?

• A. Viewfinder
• B. Camera Control Unit
• C. Lens Calibrator
• D. Tripod

Answer: (B)

The device that regulates camera signal elements like focus, white balance, and color balance is the Camera Control Unit. It serves as the central control hub for one or more cameras, allowing remote adjustments of focus, iris, white balance, color temperature, and other image settings to ensure a consistent look across all cameras in a shot or studio. This capability is essential in multi-camera productions where on-set lighting and exposure can change, so operators can quickly fine-tune each camera from a single panel.

A viewfinder is just what you look through to see the image; it doesn't control or adjust camera parameters. A lens calibrator is used for mechanical or optical calibration tasks, not real-time signal adjustments. A tripod provides physical support for the camera and has no role in regulating image parameters.