Nikon E2 - E2S - Manual (Page 77)

Shutter speed and aperture
Light reaching the CCD image device is controlled 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 high 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 which 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 the main subject appears against a blurred
background.
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