Canon POWERSHOT A2500 User Manual page 55

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Focusing
may n ot b e possible
insome shooting
conditions.
Inlow-light
conditions,
Servo AF may n ot b e activated
(AF frames
may n ot t urn b lue) when you press the shutter button halfway.
Inthis
case, the focus and e xposure
are set a ccording
tothe specified
AF
frame mode.
Ifadequate
exposure
cannot be obtained,
shutter speeds
and
aperture
values are displayed
inorange.
Release
the shutter button,
and then p ress ithalfway
again.
AF lock s hooting
isnot a vailable.
[AF-Point
Zoom] on the [O]tab isnot available.
Not available
when u sing the self-timer
(_ 33).
the Focus SettLin_
You can change
default
camera
operation
of constantly
focusing
on
subjects
it is aimed at, even when the shutter
button is not pressed,
instead,
you can limit camera
focusing
to the moment
you press the shutter
button
halfway.
@ Press the
<MENU>
button,
choose
[Continuous
AF] on the [0]
tab, and then
choose
[Off] (_i_'26).
o_Helps
missing
photo
avoid
sudden
opportunities
because the camera
n
'
.
.
On Iconstantly focuses on subjects until you
_tery
power, because the
Off
ith the AF Lock
The focus
can be locked. After you lock the focus,
the focal position
will not
change
even when
you release
your finger from the shutter
button.
Lock the focus.
@ With the shutter
button
pressed
halfway,
press the <4>
button.
The focus is now locked, and
[AFL]
is
displayed.
@ To unlock
the focus, release
the shutter
button
and press the <4> button
again.
In
this case,
[AFL]
is no longer displayed.
2
Compose the shot and shoot.
@@
55

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