a4: Focus
Tracking
with
Lock-On
----------------
This
option
controls
how
autofocus adjusts
to
sudden large
changes in
the
distance
to
the
subject.
=---'Optfo'n'-~
r:=_~=~,=-
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,,-~·_~~_-~=-::~=_~"=~!~~ripti~~=-_~~=-_.~=~
..
-
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-.=~
AF5
Long
IWhen
the
distance
to
the
subject changes abruptly,
the
'---'-:-Normaf-'
camera waits for
the
specified period (long, normal,
or
AF:
(default) Ishort) before adjusting
the
distance
to
the
subject. This
"--0
··-·'h-·---·"·
l
.
prevents the camera from refocusing when the subject
is
AF
~
Sort
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b'
. h h h f
! ne
yo
scure
yo
Jects
passing t roug t e rame.
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..
camerafm
mecffa'teiy'ad
justsfocu's·wh-en'the
di
stanc"e
Off
i
to
the
subject changes.
Use
when photographing a series
I
of
subjects
at
varying distances in quick succession.
.
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---
as:
AF
Activation
-----_...
._-
This
option
controls
whether
both
the
shutter-release
button
and
the
AF·ON
button
can be used
to
initiate autofocus,
or
whether
autofocus
is
only
initiated
when
the
AF-ON
button
is
pressed.
Option
Description
Autofocus can be performed
with
the
AF-ON
button
or
by
pressing the shutter-release
button
halfway.
Shutter!
AF-ON
(default)
-::
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----_
_
..•
_-
AF-ON
only
Au
£
1<:
can only be performed using
the
AF-ON
button
.
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.
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••.
__
.
287
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