Focusing; The Shutter-Release Button; Using Target Finding Af - Nikon coolpix A900 Reference Manual

Focusing

The Shutter-release Button

Press halfway
Press all the
way

Using Target Finding AF

In A (auto) mode or when AF area mode (A121) in A, B, C, or D mode is set to
Target finding AF, the camera focuses in the manner described below when you
press the shutter-release button halfway.
The camera detects the main subject and focuses
on it. When the subject is in focus, the focus area is
displayed in green. If a human face is detected, the
camera automatically sets focus priority on it.
If no main subject is detected, the camera
automatically selects one or more of the nine focus
areas containing the subject closest to the camera.
When the subject is in focus, the focus areas that are
in focus are displayed in green.
Shooting Features

Focusing

To press the shutter-release button "halfway" means to press
and hold the button at the point where you feel a slight
resistance.
Focus and exposure (shutter speed and f-number) are set
when you press the shutter-release button halfway. Focus
and exposure remain locked while the button is pressed
halfway.
The focus area varies depending on the shooting mode.
To press the shutter-release button "all the way" means to
press the button down completely.
The shutter is released when the shutter-release button is
pressed all the way.
Do not use force when pressing the shutter-release
button, as this may result in camera shake and blurred
images. Press the button gently.
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1/250 1/250 1/250 F3.7 F3.7 F3.7
Focus areas
1/250 1/250 1/250 F3.7 F3.7 F3.7
Focus areas