Nikon S4100 Manuel D’Utilisation

Adjusting the A (Auto) Mode setting

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Sh
ooting

E

The higher the sensitivity, the less light is needed to expose an image, allowing 
capturing darker subjects.

Also, a higher sensitivity allows higher shutter speeds, resulting in the picture with 
less camera shake and subject blur in comparison to the same subject taken under 
the same brightness. 
• Although high ISO sensitivity settings are suited to pictures of subjects taken 

under dim lighting, those taken without flash, or those taken at telephoto 
setting, high sensitivity settings are often associated with “noise”- randomly 
spaced, brightly colored pixels- concentrated in dark portions of images.

B

• There are functions with which this setting cannot be enabled. See “Camera Settings that Cannot 

A 78) for more information.

• When the ISO sensitivity setting is set to any option other than Auto, Motion detection (A 155) 

is disabled.

A (auto) M Tap the bottom tab M E ISO sensitivity

s

Auto (default setting)

Sensitivity is ISO 80 under normal conditions; when lighting is poor, the camera 
compensates by raising sensitivity to a maximum of ISO 1600.

Fixed range auto

Choose the range in which the camera automatically adjusts ISO sensitivity, from 

ISO 80-400 or ISO 80-800. The camera will not increase sensitivity beyond the 
maximum value in the selected range. Set the maximum value for ISO sensitivity for 
effective control over the amount of “grain” that appears in images.

80, 100, 200, 400, 800, 1600, 3200

Sensitivity is locked at the specified value.