Nikon Digital Camera, Reference Manual

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106
i
The options in the exposure mode menu offer varying degrees
of control over shutter speed and aperture.
Exposure Mode
h
Scene auto
selector
An automatic, “point-and-shoot” mode in which the
camera not only chooses shutter speed and aperture
but adjusts other settings to suit the subject (
0
21).
P Programmed
auto
The camera sets shutter speed and aperture for optimal
exposure (
0 108).
S Shutter-priority
auto
You choose the shutter speed; the camera selects an
aperture for best results (
0
109).
A Aperture-
priority auto You choose the aperture; the camera selects a shutter
speed for best results (
0
110).
M Manual
You control both shutter speed and aperture (
0
111).
Set shutter speed to “Bulb” or “Time” for long time-expo-
sures.
A ISO Sensitivity (P, S, A, and M Modes)
When an “auto” option is selected for ISO sensitivity , the camera will
automatically adjust sensitivity within the selected range if optimal
exposure can not be achieved at the selected shutter speed or aper-
ture.