Photography Basics
Components of Exposure
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ISO: The sensitivity of a digital sensor to light Increasing ISO makes the digital sensor more sensitive but also can increase the amount of noise in a picture.
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Shutter Speed: The speed at which the lens shutter opens and closes. Motion blur occurs because something in your shot is moving faster than your exposure time.
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Aperture: The actual hole through which light enters the lens. The aperture of the camera’s lens is responsible for setting a picture’s depth of field. When something is out of focus, it appears blurry.