A
Shutter Speed and Aperture
Two of the chief factors in determining exposure are shutter speed and aperture. By slowing
shutter speed while increasing aperture, or increasing shutter speed while reducing
aperture, you can achieve different effects while keeping exposure constant. Fast shutter
speeds and large apertures freeze moving objects and soften background details, while slow
shutter speeds and small apertures blur moving objects and bring out background details.
Shutter speed
Aperture
#
Fast shutter speed
Slow shutter speed
Large aperture (f/5.6)
Small aperture (f/22)
1
1
(
/
s)
(
/
s)
(Remember, the higher the f-number, the
1,600
6
smaller the aperture.)
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