Nikon SB-80DX User Manual download pdf (Page 62)

Autofocus flash operation in dim light

Usable cameras and lenses Cameras with autofocus function + autofocus lens

When the light is too dim for normal autofocus operation, the SB-80DX’s

AF-Assist Illuminator enables you to perform autofocus flash photography

in dim light.

In dim light, the AF-assist illuminator turns on automatically when the camera’s

shutter release button is lightly pressed if an AF lens is mounted and the

camera’s focus mode is set to S (Single Servo AF with focus priority), AF, or A.

nThe effective shooting distance with the AF-assist illuminator is approx. 1m to 10m with a

50mm f/1.8 lens or shorter, depending on the lens in use.

nUsable lens focal length: 24mm to 105mm (35 to 105mm for F-501/N2020 cameras)

nThe AF-Assist Illuminator is activated when U appears on the LCD panel.

The AF-Assist Illuminator is canceled when S appears on the LCD panel.

nThe AF-Assist Illuminator is set to activate when shipped from the factory.

nIf the focus indicator does not appear in the camera’s viewfinder even through the

AF-Assist Illuminator turns on, focus manually.

nRefer to your camera’s instruction manual.

The AF-Assist Illuminator will not light up, if:

nThe autofocus is locked or the ready-light does not come on.

nThe camera’s center focus area is not selected with cameras having Focus Area

selection. For details, refer to your camera’s instruction manual.

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Nikon SB-80DX User Manual Page 62