Photography Basics

Components of Exposure

  • 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.

  • 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.

  • 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.