Pentax PZ-70 PZ-70 Manual - Page 83
Effect, Aperture, Shutter, Speed
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(11) EFFECT OF APERTURE AND SHUTTER SPEED A correct exposure is established by a combination of shutter speed and aperture setting according to the subject brightness. Actually, there are many correct combinations of shutter speed and aperture for a particular subject brightness. Different shutter speed and aperture settings produce different effects. c. High shutter speed Effect of Shutter Speed The shutter speed determines the film exposure time, or the amount of light striking the film as the shutter stays open for its designated time. If the subject is moving, its image will be blurred at a slow speed. In contrast, choosing a high shutter speed allows a frozen image to be taken of a moving subject. A high shutter speed also prevents camera shake. It is possible to enhance the motion of a wave or a waterfall by blurring the movement using a slow shutter speed. SNOILVInd0 CGONVACIV Slow shutter speed