AGetting Good Results with Autofocus

Autofocus does not perform well under the conditions listed below. The shutter release may be disabled if the camera is unable to focus under these conditions, or the focus area may be displayed in green and the camera may sound a beep, allowing the shutter to be released even when the subject is not in focus. In these cases, focus manually (0 55) or use focus lock (0 145) to focus on another subject at the same distance, and then recompose the photograph.

 

There is little or no contrast between

The subject contains areas of sharply

 

the subject and the background.

contrasting brightness.

 

Example: The

Examples: The

 

subject is the

subject is half

 

same color as

in the shade; a

 

the back-

night scene

 

ground.

with point illu-

 

 

mination.

 

The subject contains objects at differ-

Background objects appear larger

 

ent distances from the camera.

than the subject.

 

Example: The

Example: A

t

subject is

building is in

inside a cage.

the frame

 

 

 

behind the

 

 

subject.

 

The subject is dominated by regular

The subject contains many fine details

 

geometric patterns.

or is made up of objects that are small

 

 

or lack variation in brightness.

 

Example: Blinds

Example: A field

 

or a row of

of flowers.

 

windows in a

 

 

skyscraper.

 

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