Nikon D300 User Manual page 102

Description
If the Fn button is pressed while exposure or flash
bracketing is active in single frame release mode,
all shots in the current bracketing program will be
taken each time the shutter-release button is
pressed. If white balance bracketing is active or
Bracketing continuous release mode (mode CHor CL) is
BKT burst
selected, the camera will repeat the bracketing
burst while the shutter-release button is held down
(in single frame release mode, white balance
bracketing will be repeated at the frame rate for CH
release mode).
Matrix Matrix metering is activated while the Fn button is
[]
metering )ressed.
[] Center- Center-weighted metering is activated while the Fn
weighted button is pressed.
[] Spot Spot metering is activated while the Fnbutton is
metering )ressed.
None No operation is performed when the Fn button is
(default) )ressed.
_ This option can not be used in combination with [FUNC. button+dials]
(pg. 304). Selecting this options displays a message and sets [FUNC.
button+dials] to [None]. If another option is selected for [FUNC.
button+dials] while this setting is active, [FUNC. button press] will be set to
[None].
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