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When the subject is dark and the shutter release button is pressed lightly, the camera's AF-Assist Illuminator automatically turns on and enables autofocus operation in a dark environment.
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•AF-Assist Illuminator automatically turns on in the following situations:
Focus mode is autofocus, AF Nikkor lens is used, subject is dark and center focus area is selected or Dynamic AF Mode with Closest-Subject Priority is activated.
•AF-Assist Illuminator does not turn on in Iii Landscape mode or ~"::Q Sports Continuous mode.
•Focal length of the usable AF Nikkor lens is 24-2DDmm and the distance range of the AF-Assist Illuminator is approx. D.S-3m (1.6-9.8 ft.). Autofocus using the camera'sAF-Assist Illuminator cannot be performed due to vignetting with some lenses at a shooting distance less than 1m (3.3 ft.) (page 49).
•When the optional Speedlight SB-28/28DX, SB-27, SB-26, SB-2S or SB-24 is attached and the conditions for the AF-Assist Illumination are met, the AF-Assist Illuminator of the optional Speedlight automatically turns on. With other optional Speedlights, the camera's Illuminator turns on (page 92).
NOTE: Continuous use of the AF-Assist Illuminator
When the AF-Assist Illuminator is used continuously, illumination is limited temporarily to protect the firing tube. The illumination restarts after a few moments. Also, when the AF-Assist Illuminator is used repeatedly in a short period of time, be careful not to touch the AF-Assist Illuminator lamp because it may become hot.
