Canon TX - Page 15

Automatic/Manual
Aperture
Lever
.
FD 50mm f/1.4 S.S.C.
Manual Aperture
Automatic/Manual Lock Lever
Aperture Lever
FD 35mm f/3.5 S.C.
Automatic Control of Aperture
In
the
case
of
the
FD
or
FL
lens,
the
field-of-view
can
always
be
seen
through
the
viewfinder
at
full
aperture
opening
even
after
the
f/stop
has
been
set
with
the
preset
aperture
ring.
Set the
desired
f/stop
on
the
preset
aperture
ring
to
the
index.
The
diaphragm
will
close
down
to
the
preset
f/stop
only
for
the
instant
that
the
shutter
is
released.
Except
for
that
instant,
the
diaphragm
remains
fully
open.
Manual
Control
of
Aperture
|
By
pressing
the
stop-down
lever
and
turning
the
preset
aperture
ring,
the
diaphragm
can
be
closed
down
to
any
f/stop
and
the
depth-of-field
at
the
time
of
shutter
release
can
be
checked.
When
the
lever
is
reset
to
its
original
position,
the
diaphragm
again
returns
to
maximum
opening.
=
The
aperture
is
manually
stopped
down
also
when
performing
close-up
photography
and
macrophotography.
y]
In
the
case
of
the
lens
which
has
a
manual
aperture
lock
lever,
turn
the
automatic
aperture
lever
of
the
lens
counterclockwise
all
the
way
and
set
the
manual
aperture
lock
lever
at
the
‘’L’’
position
before
mounting
the
lens.
This
manual
aperture
lock
lever
locks
the
automatic
aperture
lever
and
the
diaphragm
can
be
opened
or
closed
by
turning
the
preset
aperture
ring.
For
releasing
the
lever,
return
the
manual
aperture
lock
lever
to
the
original
position
at
the
white
dot.
15