a9: Built-in AF-Assist Illuminator

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

On

following conditions are met:

1.

Single-servo autofocus is selected for focus mode (pg. 72).

(default)

 

2.

Auto-area AF is chosen for AF-area mode (pg. 74), 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.

AThe AF-Assist Illuminator

The AF-assist illuminator has a range of about 0.5–3.0 m (1 ft. 8 in.–9 ft. 10 in.); when using the illuminator, use a lens with a focal length of 24– 200 mm and remove the lens hood.

ASee Also

See page 375 for restrictions on the lenses that can be used with AF assist.

U

290