Shutter speed, aperture, and ISO are the three fundamental settings. Understanding their interplay can help control exposure and capture the desired effect.

ISO adjusts your camera's sensitivity to light. Lower ISO values are best for bright conditions, while higher values help in low light but may introduce noise.

Aperture affects depth of field. A wide aperture (small f-number) provides a blurred background, while a narrow aperture (large f-number) keeps more of the scene in focus.

Shutter speed controls motion blur. Fast speeds freeze motion, while slow speeds can create artistic blur, like smooth water effects in a landscape.