Nikon COOLPIX P310 Reference Manual page 46

1 Pressthe shutter-release button
halfway, i.e., press the button slightly
until you feel resistance.
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• When you press the shutter-release button
halfway, the camera sets the focus and exposure
(shutter speed and aperture value). Focus and
exposure remain locked while the shutter-release
button is pressed halfway.
• When the camera detects the main subject, it focuses
on that subject. When the subject is in focus, the
focus areas (up to 12 areas) light in green.
The camera has nine focus areas, and if it does not
detect the main subject, it automatically selects the
focus areas containing the subject closest to the
camera. When the subject is in focus, the focus areas
that are in focus (up to nine areas) light in green.
Shutter speed Aperture
value
• When the digital zoom is in effect, the camera focuses on the subject at the center of
the screen, and the focus area is not displayed. When the subject is in focus, the focus
indicator (_6) lights in green.
• When the shutter-release button is pressed halfway and the focus area or focus
indicator flashes in red, the subject is out of focus. Change the composition and press
the shutter-release button halfway again.
2 Press the shutter-release button all the way,
i.e., press the button the rest of the way down. J_,J
• The shutter is released and the picture is recorded.
• If you press the shutter-release button with too much
force, the camera may shake, causing images to be
blurred. Press the button gently.
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