Nikon D3X User Manual page 139

To choose the exposure mode, press the I
button and rotate the main command dial
until the desired mode is displayed in the
viewfinder or top control panel.
A
Depth-of-Field Preview
To preview the effects of aperture, press and hold
the depth-of-field preview button. The lens will
be stopped down to the aperture value selected
by the camera (modes e and f ) or the value
chosen by the user (modes g and h), allowing
depth of field to be previewed in the viewfinder.
A
Custom Setting e3—Modeling Flash
This setting controls whether the SB-900, SB-800, SB-600, SB-R200, and
other optional flash units that support the Creative Lighting System (CLS;
see page 186) will emit a modeling flash when the depth-of-field preview
button is pressed. See page 327 for more information.
A
See Also
See page 106 for information on auto ISO sensitivity control. For
information on using the [Long exp. NR] option in the shooting menu for
reducing noise at slow shutter speeds, see page 300. For information on
choosing the size of the increments available for shutter speed and
aperture, see Custom Setting b2 ([EV steps for exposure cntrl.], pg. 314).
For information on changing the roles of the main and sub-command
dials, see Custom Setting f7 ([Customize command dials] > [Change main/
sub], pg. 341).
I button
Main command
dial
Preview button
Z
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