Samsung NX1000 User Manual

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iii!¸¸? :ii : jHow the aperture setting, shutter speed,and ISO sensitivity control exposureThe aperture setting, shutter speed, and ISO sensitivity are closelyinterconnected in photography. The aperture setting controls theopening that regulates the light that enters the camera, while the shutterspeed determines the length of time that light is allowed to enter.ISO sensitivity determines the speed at which the film reacts to light.Together, these three aspects are described as the triangle of exposure.A change in shutter speed, aperture value, or ISO sensitivity can beoffset by adjustments to the others to maintain the amount of light.The results, however, change according to the settings. For example,shutter speed is useful in expressing movement, aperture can controlthe depth of field, and ISO sensitivity can control the graininess of aphoto.Wide = small depth of fieldNarrow = large depth of fieldFast = stillSlow = blurt/ISO sensitivityHigh sensitivity= more sensitive to lightLow sensitivity= less sensitive to lightApertureWide aperture= more lightNarrow aperture= less lightHigh = more grainyLow = less grainy