Nikon D300 User Manual page 110

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6
Press the shutter-release
button all the way down.
The mirror will be raised and
the view through the lens will
be displayed in the camera
monitor. The subject will no
longer be visible in the viewfinder. To exit without taking a
picture, rotate the release mode dial to another setting or
press MENU.
Focus.
Autofocus (focus mode Sor Q: In
tripod mode, the focus point
for contrast-detect autofocus
can be moved to any point in
the frame using the multi
selector.
Contrast-detect AF point
AF-ON button
To focus using contrast-detect
autofocus, press the AF-ON button. The
focus point will blink green and the
monitor may brighten while the camera
focuses. If the camera is able to focus
using contrast-detect autofocus, the
focus point will be displayed in green; if
the camera is unable to focus, the focus point will blink red.
Contrast-Detect Autofocus
The camera will not continue to adjust focus while the AF-ON b utton is
pressed in continuous-servoautofocus mode. In both single-servo
and continuous-servo autofocus modes, the shutter can be released
even when the camera is not in focus.
Manualfocus (focus mode M; pg. 71): Use zoom for precise focus.
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