Subjects Not Suitable For Autofocus - Nikon Coolpix L830 Reference Manual

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 glows
green:
Subject 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. the subject is 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 focus on another subject positioned at the same distance from the camera as
the actual desired subject, and use focus lock (A 61).
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