Nikon 4200 - Manual (Page 97)

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Sensitivity
Sensitivity is a measure of how sensitive the camera re-
acts to light. With Auto (default setting), ISO sensitiv-
ity automatically increases at low brightness. Setting
ISO sensitivity at a high level is effective in preventing
blur when Speedlight is disabled in dark settings or making the subject appear
brighter. However, the image may contain “noise” or become “grainy.”
Select from the following five levels and press .
Noise Reduction
When raising sensitivity, “noise” in the form of randomly-spaced, brightly colored pix-
els may appear in pictures. In this case, noise in pictures taken at slow shutter speeds
will be reduced automatically when Noise reduction (
95) is On.
Auto
Unless the setting is Auto, a selected ISO value is dis-
played in the monitor whenever sensitivity is raised. An
icon will appear at Auto setting when the camera has
automatically changed sensitivity.
Press MENU button in (auto shooting) mode to
select Sensitivity ( 74), and then press .
Option Description
Auto
(default set-
ting)
Approximately equivalent to ISO 80 under normal condi-
tions; when lighting is poor, however, camera automatically
compensates by raising sensitivity to maximum of ISO 200
equivalent.
80 Approximately equivalent to ISO 80.
100 Approximately equivalent to ISO 100.
200 Approximately equivalent to ISO 200.
400
Approximately equivalent to ISO 400. Intended for use with
natural lighting; not recommended when using flash.