Exposure Triangle
The Exposure Triangle is widely used by photographers to refer to the three primary components of a camera system that a photographer adjusts to control exposure: aperture, ISO, and shutter speed.
Aperture is adjusted by turning the innermost rig on the outside of the lens housing on a professional lens. A series of f-stop numbers are printed on the outside surface of the ring, indicating the size of the aperture.
ISO describes a sensor's ability to respond to light.
Shutter speed influences how motion is captured by the image sensor. A slower shutter speed is used when the subject motion is minimal, the light level is low, or when the photographer purposely wants to create a motion blur effect. A faster shutter speed is used when shooting fast-moving subjects, in settings with plenty of light, or when a photographer purposely is trying to freeze action without compromising image clarity.
Aperture is adjusted by turning the innermost rig on the outside of the lens housing on a professional lens. A series of f-stop numbers are printed on the outside surface of the ring, indicating the size of the aperture.
ISO describes a sensor's ability to respond to light.
Shutter speed influences how motion is captured by the image sensor. A slower shutter speed is used when the subject motion is minimal, the light level is low, or when the photographer purposely wants to create a motion blur effect. A faster shutter speed is used when shooting fast-moving subjects, in settings with plenty of light, or when a photographer purposely is trying to freeze action without compromising image clarity.
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