Nikon autofocus speedlight SB-900 User Manual page 31

Control button operation
The basic control of SB-900 functions is as follows:
Two-button operation
Two-button reset
Pressing the "Function buttons" 1 and 3
(indicated with a green dot) simultaneously for
two seconds resets all settings (except custom
setting) to default settings.
• After reset settings, the LCD is highlighted
once and then returns to normal display.
Key lock function
Pressing the "Function buttons" 1 and 2
(indicated with a key mark) simultaneously locks
control buttons.
• The POWER ON-OFF/wireless setting switch and
the test firing buttons remain unlocked.
• A key icon is displayed on the LCD while buttons
are locked.
• To cancel the key lock function, press the two
buttons again for two seconds.
Select function to be
changed and press the
button that controls the
function.
• The selected function is highlighted.
Change the setting by
rotating the selector dial.
• Rotating the dial clockwise increases
the value of the setting, and
counterclockwise, decreases the value.
Press the [OK] button to
confirm setting.
• Once confirmed, the highlighted item
returns to normal display.
• If the [OK] button is not pressed, the
highlighted item is confirmed and returns
to normal display after 8 seconds.
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