Nikon S8200 - Manual (Page 181)

E 69
The Setup Menu
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AF Assist
Enable or disable AF-assist illuminator, which assists autofocus operation when the
subject is dimly lit.
d button M z tab M AF assist
Option Description
Auto (default setting)
AF-assist illuminator will be used to assist the focus operation
when the subject is dimly lit. The illuminator has a range of
about 2.2 m (7 ft 3 in.) at the maximum wide-angle position and
about 1.4 m (4 ft 7 in.) at the maximum telephoto position.
Note that for some focus areas and for some scene modes, such
as Museum (
A 48) and Pet portrait (A 43), the AF-assist
illuminator may not light even when Auto is selected.
Off
AF-assist illuminator does not light. The camera may be unable
to focus under dim lighting.