Nikon COOLPIX-P100 User Manual Page 82

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Setting the Exposure for Shooting (A, B, C, D Modes)
More on Shooting
C (Aperture-Priority Auto) Mode
Set the aperture value and shoot pictures.
1
Rotate the mode dial to C.
2
Rotate the command dial to choose
the aperture value (f/-number).
When the camera is zoomed all the way
out, aperture can be set to values between
f/2.8 and f/8.0; at maximum zoom, aperture
can be set to values between f/5.0 and f/
8.0.
3
Focus and shoot.
At the default setting, the camera automatically selects
the focus area (one of nine) containing the subject
closest to the camera. When the subject is in focus, the
focus area (active focus area) glows green (maximum of
nine areas) (A90).
B C (Aperture-Priority Auto) Mode
If the selected aperture would result in the picture being over- or underexposed, the aperture display
will flash when the shutter-release button is pressed halfway. Choose another aperture value and try
again.
B Notes on Shutter Speed
When the ISO sensitivity (A84) is ISO 800, the slowest shutter speed is restricted to four seconds,
when ISO 1600, restricted to two seconds, and when ISO 3200, restricted to one second.
When Multi-shot 16 is selected for the Continuous setting (A86), the slowest shutter speed is
restricted to 1/30 second.
D Aperture and Zoom
Aperture is expressed as an f-number, which is the ratio of the focal length of the lens to the effective
diameter of the opening (aperture) through which light enters the camera. Large apertures (expressed
by small f-numbers) let more light into the camera, and small apertures (large f-numbers) let less light.
This camera has a lens with a focal length of 4.6-120 mm and an aperture of f/2.8 to f/5. When the
camera is zoomed out, the f-number decreases. When the camera is zoomed in, the f-number
increases.
1/250
1/250
1/250
17
17
17
F5.6
F5.6
F5.6
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