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This option determines how the focus point for autofocus is
selected (_ 56).
If On is selected and lighting is poor, the built-in AF-assist
illuminator (_ 55) will light to assist the focus operation in
single-servo AF (A[-Sselected for focus mode, or single-servo AF
selected in AF-Afocus mode) when Auto-area is selected for AF-
area mode or when Single point, Dynamic area, or 3D-
tracking (11 points) isselected and the center focus point is
used. if Off is selected, the AF-assist illuminator will not light to
assist the focus operation. The camera may not be able to focus
using autofocus when lighting is poor.
AF-assistilluminator
[] See Also
See page 197 for restrictions on the lenses that can be used with AF assist. See page 212 for
the shooting modes in which the AF-assist illuminator can be used.
This option determines how the focus point for autofocus is
selected in live view (_ 43).
155