The Exposure Triangle consists of which three camera settings?

• A. White Balance, ISO, Focal Length
• B. ISO, Shutter Speed, Aperture
• C. Focus Mode, ISO, Shutter Speed
• D. Quality, ISO, Aperture

Answer: (B)

The Exposure Triangle shows how brightness in a photo is controlled by three camera settings: ISO, shutter speed, and aperture. ISO determines how sensitive the sensor is to light—higher ISO makes the image brighter but adds more noise. Shutter speed is how long the sensor is exposed to light; a slower speed lets in more light but can blur movement, while a faster speed freezes motion but makes the image darker. Aperture is the size of the lens opening; a larger opening (lower f-number) lets in more light and gives a shallower depth of field, while a smaller opening (higher f-number) lets in less light and yields a deeper depth of field. Together, these settings balance brightness and creative outcomes: you can trade one for another to keep the same exposure, while each one also changes the look—aperture shaping focus area, shutter speed affecting motion, and ISO affecting noise.

Other camera controls govern color, perspective, and file quality, such as White Balance (color temperature), Focal Length (field of view), Focus Mode (how the camera locks onto a subject), and Quality (compression/bit depth). They don’t define exposure the way the three settings above do.