Nikon SB-800 Autofocus flash operation in dim light, t For cameras compatible with CLS

Autofocus flash operation in dim light

When the light is too dim for normal autofocus operation, the SB-800’s Wide- Area AF-Assist Illuminator enables you to perform autofocus flash photography.

• In dim light, the Wide-Area 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.

• The effective shooting distance with the Wide-Area

AF-Assist Illuminator is approx. 1m to 10m (3.3 to 33 ft.) with a 50mm f/1.8 lens or less, depending

on the lens in use.

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

• Use the center focus area in your camera’s viewfinder when using the wide-area AF-Assist Illuminator.

tFor cameras compatible with CLS

•The SB-800’s Wide-Area AF-Assist Illuminator supports the dynamic-area AF system of cameras compatible with CLS.

•With a D2H camera, for example:

Usable lens focal length: 24mm to 105mm.

A total of 11 focus areas are usable at a lens focal length of 35mm or longer as shown in the figure below.

A total of 9 focus areas excluding the extreme right- and left-hand ones are usable at a lens focal length of less than 35mm.

•With AF cameras such as the D2H, the effective shooting range of the wide-area AF-assist Illuminator is approx. 1m to 10m (3.3 to 33 ft.) or less in the mid portion of the frame, and 1m to 7m (3.3 to 23 ft.) or less at the periphery (with a 50mm f/1.8 lens). These ranges may vary depending on the lens in use.

•For details, see your camera’s instruction manual.

62