Pentax PZ-1p PZ-1p Manual - Page 41

Hard-to-autofocus, Subjects

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(2) HARD-TO-AUTOFOCUS SUBJECTS OEM I.' - I 3 !MO i I ...-.1 ..--, , ..:. The autofocus system is highly precise, but not perfect. Depending on the brightness, contrast, shape, and size of your subject, the autofocus system may not operate. In such a case, use the focus-lock technique on a subject near the actual one and equidistant from the lens, or set the focus mode switch to [MANUAL] and use the manual focus mode to focus the lens on the subject with the aid of the matte field in the viewfinder. Subjects which may fool the autofocus system include: a) Extremly low-contrast subjects such as a white wall in the AF frame [ C 7 ]. b) Subjects which don't reflect much light in the AF frame [ C ]. c) Subjects which are moving too fast. d) Subjects with horizontal lines or with finely complex or detailed patterns in the AF frame [ C J ]• e) Multiple subjects in the foreground and background of the AF frame [ C ]. f) Subjects positioned against reflected light or strong backlight or with extremly bright backgrounds. NOLLVII3dO O3ONVACIV

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(2)
HARD-TO-AUTOFOCUS
SUBJECTS
OEM
i
I
...-.1
..--,
,
..:.
a)
Extremly
low
-contrast
subjects
such
as
a
white
wall
in
the
AF
frame
[
C
7
].
I.
'
—
I
3
b)
Subjects
which
don't
reflect
much
light
in
the
AF
frame
[
C
].
c)
Subjects
which
are
moving
too
fast.
d)
Subjects
with
horizontal
lines
or
with
finely
complex
or
detailed
patterns
in
the
AF
frame
[
C
J
]•
e)
Multiple
subjects
in
the
foreground
and
background
of
the
AF
frame
[
C
].
f)
Subjects
positioned
against
reflected
light
or
strong
backlight
or
with
extremly
bright
backgrounds.
!MO
The
autofocus
system
is
highly
precise,
but
not
perfect.
Depending
on
the
brightness,
contrast,
shape,
and
size
of
your
subject,
the
autofocus
system
may
not
operate.
In
such
a
case,
use
the
focus
-lock
technique
on
a
sub-
ject
near
the
actual
one
and
equidistant
from
the
lens,
or
set
the
focus
mode
switch
to
[MANUAL]
and
use
the
manual
focus
mode
to
focus
the
lens
on
the
subject
with
the
aid
of
the
matte
field
in
the
viewfinder.
Subjects
which
may
fool
the
autofocus
system
include:
NOLLVII3dO
O3ONVACIV