Pentax ZX-5 ZX-5 Manual - Page 89
Effect, Aperture, Shutter, Speed
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(16) EFFECT OF APERTURE AND SHUTTER SPEED 85 High shutter speed A correct exposure is established by a combination of shutter speed and aperture setting according to the subject brightness. There are many correct combinations of shutter speed and aperture for a particular subject brightness. Different shutter speed and aperture settings produce different effects. Effect of Shutter Speed The shutter speed determines the film exposure time, or • the length of time that light is allowed to strike the film. If the subject is moving the image will be blurred when • a slow shutter speed is used. It is possible to enhance the effect of motion, (The movement of a wave or wa- terfall) by intentionally using a slower speed. Choosing a high shutter speed will allow the image of a moving subject to be frozen. A higher shutter speed also helps prevent camera shake. • SNOIIVEI3dO O3ONVAGV Slow shutter speed