Nikon 13187 User Guide (en)

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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.
Fast shutter speed 
(
1
/
1,600
s)
Slow shutter speed 
(
1
/
6
s)
Large aperture (f/5.6)
Small aperture (f/22)
(Remember, the higher the f-number, the 
smaller the aperture.)
Shutter speed
Aperture