To white balance the camera, the operator must

• A. Point the camera at a white object and press the auto-white button
• B. Aim at any object and press the WB button
• C. Adjust exposure manually
• D. Lock focus and shoot

Answer: (A)

White balance is about adjusting the camera so colors look natural under the current lighting by neutralizing color casts. To set it correctly, you provide a neutral reference in the frame so the camera can calibrate to that light. Pointing the camera at a white object and using the auto-white balance control tells the camera to sample that neutral reference and set its color gains accordingly, making whites appear white and the overall colors accurate for the scene. Adjusting exposure changes brightness, not color temperature, and focusing doesn’t affect color balance. Relying on any random object as a reference can yield an incorrect balance unless that object is truly neutral white or gray for the lighting.