Nikon SB-27 instruction manual Autofocus flash operation in dim light

Autofocus flash operation in dim light

(For AF SLR cameras only)

Nikon AF SLR cameras using AF Nikkor lenses can autofocus in light as dim as a single candle. When ambient light is insufficient for autofocus operation, the

SB-27's AF assist illuminator LED automatically turns ON to give contrast to dark subjects, enabling the camera's autofocus system to function when the shutter release button is pressed halfway.

Take care not to block the AF assist illuminator LED.

—The AF assist illuminator LED goes out as soon as the subject has been correctly focused.

•No AF assist illuminator LED lights up if the F5’s, F100’s, F80-Series/

N80-Series’ or F65-Series/N65-Series’ central focus area is not selected. Be sure to select the central focus area.

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