The three camera settings a photographer adjusts in manual exposure mode are

• A. Shutter Speed, Aperture, ISO
• B. White Balance, ISO, Focal Length
• C. Aperture, Color Space, ISO
• D. Shutter Speed, ISO, Color Temperature

Answer: (A)

In manual exposure, you control how much light the camera sensor records with three settings: shutter speed, aperture, and ISO. Shutter speed governs how long the sensor is exposed to light—faster speeds freeze motion but let in less light, slower speeds gather more light but can blur movement. Aperture is the lens opening—a wider aperture (lower f-number) lets in more light and creates shallower depth of field, while a smaller aperture (higher f-number) lets in less light and increases depth of field. ISO measures the sensor’s sensitivity to light—lower ISO gives cleaner images but requires more light, higher ISO allows shooting in darker conditions but adds noise. These three interact to determine the overall exposure, and in manual mode you set all three to achieve the desired brightness and look.

The other options aren’t part of the exposure controls: white balance affects color rendering, not brightness; focal length changes framing and perspective; color space and color temperature relate to color management and white balance rather than the amount of light captured.