Canon FTb - Frame Counter and Shutter Lock; Attaching the Cable Release

-ll
Frame
Gounter
Each
winding
will advance
the
number
of
the
frame
counter,
indicating
the
number
of
pictures
taken.
when
the
back
cover
is
opened,
the
counter
automatically
returns
to
starting position
Safety
Device
for
Shutter
when
the
shutter
lock
lever
around
the
shutter
release
button
is
turned
to
"
L
"
position,
the
shutter
is
locked
and
will
not
move.
This
device
may
be
used
when
the
camera
is
carried
in
a
wound
condition.
Attaching
the
Gable
Release
Optional
Canon
Release
can
be
attached
to
the
FTb by
screwing
it
into
the
threaded
hole
in
the
center
of
the
shut-
ter release
button.
The
use
of
a
cable
release
is
recom-
mended
when
photographing
with
extended
time
exposure
or
slow
shutter
speeds,
and
for
copy
work.
Even if
the
shutter
lock
lever
is
at
,,
L
"
position,
the
shutter
will
operate
by
using
the
release.
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