..
Getting
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 in-focus indicator
(e)
may be displayed and the camera may sound a beep, allowing the shutter
to
be released
even when the subject
is
not
in focus. In these
cases,
rotate the focus
mode
selector
to
Mand
use
manual focus (pg.
59),
or
use
focus lock (pg.
57)
to
focus on another subject at the same
distance and then recompose the photograph.
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~
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.
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.
.
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.
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.
/,'
~.··j··:··················I~··················
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~
.
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There
is
little
or
no
contrast
between the subject
and
the
background.
Example:
Subject
is
the
same
color
as
the
background.
The
focus
point
contains
objects
at
different distances
from the camera.
Example:
Subject
is
inside a
cage.
.rrf.:·····
,~.
.
..
'
_
The
focus
point
contains
areas
of
sharply contrasting
brightness.
Example:
Subject
is
half in
the shade.
Background objects appear
larger than the subject.
~.
Example:
a building
is
in the
frame behind the subject.
The
subject
is
dominated
by
regular geometric patterns.
Example:
A row
of
windows
in a skyscraper.
The
subject contains
many
fine details.
Example:
A field
of
flowers
or
other
subjects
that
are
small
or
lack variation in
brightness.
~
The AF-Assist
Illuminator
If
the
subject
is
poorly lit, the AF-assist illuminator will
light
AF-assist
illuminator
automatically
to
assist
the
autofocus operation when the shutter-
release
button
is
pressed halfway. The AF-assist illuminator will
not
light
in
1iiI,
or
~
modes
or
if
Off
has
been selected for Custom Setting
a3
(Built-in
AF-assist
illuminator;
pg. 174). The illuminator
has
a
range
of
about
0.5-3.0 m
(1
ft. 8
in.-9
ft. lOin.); when using
the
illuminator,
use
a lens
with
a focal length
of
24-200
mm
and remove
the
lens hood.
Pal
See Also
Custom Setting d1 (Beep; pg. 180) can be used
to
turn the beep speaker on
or
off.
55
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General
Weight and Dimensions
