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U
a9: Built-in AF-assist Illuminator

Choose whether the built-in AF-assist

illuminator lights to assist the focus

operation when lighting is poor.

AThe AF-Assist Illuminator
The AF-assist illuminator has a range of about 0.5–3.0m (1 ft. 8 in.–9 ft.
10in.); when using the illuminator, use a lens with a focal length of 24–
200mm and remove the lens hood.
ASee Also
See page 355 for restrictions on the lenses that can be used with AF assist.
Option Description
On
(default)
The AF-assist illuminator lights when lighting is poor.
AF-
assist illumination is only available when both of the
following conditions are met:
1. Single -servo autofocus is selected for focus mode (pg. 62).
2. Auto-area AF is chosen for AF-area mode (pg. 64), or
single-point or dynamic-area AF is chosen and the center
focus point is selected.
Off
The AF-assist illuminator does not light to assist the focus
operation.
The camera may not be able to focus using
autofocus when lighting is poor.