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36
ADJUSTING THE FOCUS - CONT'D
THE SUBJECT THAT IS DIFFICULT TO FOCUS IN THE AUTOFOCUS MODE
The autofocus mode uses the image contrast (the difference of light and dark parts) on the CCD
(Charge Coupled Device) to focus on. Therefore, with the autofocus mode, the focus may not be
adjusted correctly on the following subjects. In this case, use the focus lock function (see page 37),
that you once focus on the other subject which is at the same distance as the subject you want to take
the picture and change the image composition, or use the manual focus mode (adjust the focus man-
ually, see page 39).
The subject is too dark.
The subject has no con-
trast such as a blue sky or
a white wall.
Some subjects at different
distances overlap in the
focus range.
The subject is too bright
such as a shining car body
or a surface of water.