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110
Subjects Difficult to Focus on
Autofocus may fail to achieve focus (focus indicator <o> in the viewnder
blinks) with special subjects such as the following:
Subjects with very low contrast (Example: Blue skies, solid-color at
surfaces, etc.)
Subjects in very low light
Strongly backlit or reective subjects (Example: Car with a highly
reective body, etc.)
Near and distant subjects positioned close to an AF point (Example:
Animals in cages, etc.)
Light source such as dots of light positioned close to an AF point
(Example: Night scenes, etc.)
Subjects with repetitive patterns (Example: Skyscraper windows,
computer keyboards, etc.)
Subjects with ner patterns than an AF point (Example: Faces or
owers as small as or smaller than an AF point, etc.)
In such cases, focus in either of the following two ways.
(1) With One-Shot AF, focus on an object at the same distance as the
subject and lock the focus, then recompose the shot (=
74).
(2) Set the lens’s focus mode switch to <MF> and focus manually.
Depending on the subject, focus may be achieved by slightly recomposing the
shot and performing AF operation again.
For conditions that make focusing difcult with AF during Live View shooting
or movie shooting, see page 202.
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