Shutter speed and aperture
Light reach in g the CC O image device is contro lled by shutter speed and aperture. The proper combination results in a correct exposure. You can use shutter speed to freeze the action by using a hig h shutter speed, or create a motion effect by choosing a slower shutter speed. You can control depth of field by varying the aperture . Smaller apertures make the background and foreground sharper while larger apertures tend to blur the background .
Taken with high shutter speed Taken with slow shutter speed
The higher the shutter speed the more effectively you can stop the action, and the slower the shutter speed the more blurry the action becomes .
Taken with narrow aperture | Taken with wide aperture |
Depth of field is the zone of sharpness in front of, behind and around the subject on whic h the lens is focused, and it is greatly affected by aperture .
The smaller the aperture, the more distinct the background and foreground , and the larger the aperture the sharper th e main subject appears against a blurred background.
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