U.M. 1
Table Of Contents
OUT
OF
FOCUS
IN
FOCUS
12
Automatic diaphragm
When
the
preview
lever
is
in
"A"
(automatic)
position,
and
the
expo-
sure
meter
is
turned
to
"OFF",
the
fully
automatic
diaphragm
is
at
its
largest
aperture
at
all
times,
except
for
the
instant
of
exposure,
no
mat-
ter
what
aperture
is
set
on
the
dia-
phragm
ring.
When
you
release
the
shutter,
the
diaphragm
automati-
cally
stops
down
to
the
predeter-
mined
aperture
and
the
shutter
cur-
tains
start
traveling
instantly.
When
the
exposure
is
completed,
the
dia-
phragm
reopens
to
maximum
aper-
ture
completely
automatically
and
you
are
ready
to
compose, focus,
and
shoot
your
next
pictures.
If
you
wish
to
visually
check
exact
depth-of-field
before
making
the
exposure,
move
the
preview
lever
to
"M"
(Man
ual
)
position.
This
stops
the
diaphragm
to
the
aperture
selected
and
shows
you
exactly
how
much
depth-of-
t field will
appear
in
your
picture.
The
preview
lever
may
be
moved
back
to
"A"
(a
utomatic
)
position
before
or
after
making
your
exposure, or,
if
you
are
making
pictures
in
bright
sunlight,
it
may
be
left
in
manual
position, which
permits
a
constant
check
of
depth-of-field.
*When the exposure meter switch is
turned
to
the
"on"
position, the lens
diaphragm changes from the auto-
matic
to
manual position even though
the preview lever is
in
the
"A"
(auto-
matic) position. When the shutter is
released, the lens diaphragm will auto-
matically return
to
its automatic po-
sition
if
the lever is set on
"A".