Datasheet

✦ Lens release button. This button
disengages the locking mechanism
of the lens, allowing the lens to be
rotated and removed from the lens
mount.
✦ Focus mode selector. This three-
way switch is used to choose
which focus mode the camera
operates in: Single focus,
Continuous focus, or Manual focus.
Left front
✦ AF-assist illuminator. This is an
LED that shines on the subject to
help the camera to focus when the
lighting is dim. The AF-assist illumi-
nator only lights when in Single
focus mode and when the camera
is in Auto-area AF mode, or when
in Dynamic or Single area AF, and
the focus point is set to the center
position.
✦ Sub-command dial. This dial, by
default, is used to change the aper-
ture setting. It is also used to
change various settings when used
in conjunction with other buttons,
such as the Quality button.
✦ Depth of field preview button.
Pressing this button stops down
the aperture of the lens so you can
preview how much of the subject
is in focus. The image in the
viewfinder gets darker as the aper-
ture decreases. The Depth of field
preview button can also be cus-
tomized in exactly the same way
as the Function button.
22 Part I ✦ Using the Nikon D300
10-pin remote
terminal cover
Flash sync
terminal cover
Lens release
button
Flash mode
button
Flash pop-up
button
Built-in Speedlight
AF-area mode
selector
Focus mode
selector
Image courtesy Nikon
1.3 Right-front camera controls
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