Autofocus

The COOLPIX 4200 has two modes that allow control of the Autofocus; AF area mode ( 91) and Auto-focus mode ( 94).

AF/AE lock

Focus and exposure are locked when the shutter-release button is pressed halfway, and remain locked while the shutter-release button is held in this position (AF/AE lock). AF/ AE lock can be used to take pictures of off-center subjects or in situations in which the camera is unable to focus using autofocus.

Procedures for AF/AE lock are described below. In this example, AF area mode ( 94) is set to Auto (default setting).

1 Focus

Position the subject in the center of the frame in the monitor and press the shutter-release button half- way.

The camera automatically selects a focus area containing

the subject closest to the camera from five focus areas.

2 Check the green (AF) lamp and focus indicator

When the subject is in focus, the green (AF) lamp next to the viewfinder and focus indicator on the monitor are lit. Focus area shows green on the mon- itor.

• Focus and exposure will remain locked while the shutter- release button is pressed halfway.

3 Recompose the picture

Keeping the shutter-release button pressed halfway, recompose your picture. Do not change the distance between the camera and your subject while AF/AE lock is in effect. If your subject moves, remove your finger from the shutter-release button and focus again at the new distance.

4 Take the picture

Press the shutter-release button the rest of the way down to shoot.

Basic Photography

23

Page 33
Image 33
Nikon CP4200 manual Autofocus, AF/AE lock