Справочник Пользователя для Samsung Galaxy NX3000 Camera

Shooting Functions > 

AF area

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If you do not select a focus area, the focus frame will appear in the center of 
the screen.

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Tracking a subject may fail when:

 

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the subject is too small

 

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the subject moves irregularly

 

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the subject is backlit or you are shooting in a dark place

 

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colors or patterns on the subject and the background are the same

 

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the subject includes horizontal patterns, such as blinds

 

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the camera shakes excessively

 

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you capture photos continuously

• 

When tracking fails, the feature will be reset.

• 

If the camera fails to track the subject, the focus area will be reset.

• 

If the camera fails to focus, the focus frame will change to red and the focus 
will be reset.