Nikon COOLPIX L820 Reference Manual page 91

_1_ Subjects Not Suitable for Autofocus
The camera may not focus as expected in the following situations. In some rare cases, the subject
may not be in focus despite the fact that the focus area or the focus indicator turns green;
• Subiect is very dark
• Objects of sharply differing brightness are included in the scene (e,g, the sun behind the subject
makes that subject appear very dark)
• No contrast between the subject and surroundings (e.g, a portrait subject, wearing a white shirt, is
standing in front of a white wall)
• Several objects are at different distances from the camera (e,g, an animal inside a cage)
• Subjects with repeating patterns (window blinds, buildings with multiple rows of similarly shaped
windows, etc.)
• Subject is moving rapidly
In the situations noted above, try pressing the shutter release button halfway to refocus several
times, or select I_1 (auto) mode and use focus lock (_ 70) to take the pictu re by first focusing on an
object that is the same distance from the camera as the desired subject,
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