A9: Built-In Af-Assist Illuminator; A9 ; Built-In Af-As'~;Ist Illuminator - Nikon D300s User Manual

a9: Built-in AF-assist Illuminator
MENU button .. () Custom Settings menu
Choose whether the built-in AF-assist
illuminator lights to assist the focus
operation when lighting is poor.
Option Description
The AF-assist illuminator lights when lighting is poor. AF-
assist illumination is only available when both of the
following conditions are met:
On
,1.
Single-servo autofocus is selected for focus mode
(0
74).
; 2. Auto-area AF is chosen for AF-area mode
(CJ
76), or single-
point or dynamic-area AF is chosen and the center focus
point is selected.
_ . " ' -
-
.-..
.---.-
-" -
-
The AF-assist illuminator does not light to assist the focus
Off ;
operation. The camera may not be able to focus using
:autofocus when lighting is poor.
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.
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PI
The AF-Assist Illuminator
The AF-assist illuminator has a range of about 0.5-3.0 m (1 ft. 8 in.-9 ft.
lOin.); when using the illuminator, use a lens with a focal length of 24-
200 mm and remove the lens hood.
PI
See Also
See page 345 for restrictions on the lenses that can be used with AF
assist.
268