User manual
To
Determine
Amount
of
Film
Required
The
scale
around
the
top
of
the
tripod, Fig.
11,
indicates
the
amount
of film required, in inches,
for
the
different
number
of degrees
that
the view
will embrace. When focusing,
the
lens should
be pointed
to
the
extreme left of
the
subject
to
be photographed
and
the
black tab,
by
which
the
scale is moved
around
the
tripod top, should be
moved until
it
is directly under the center of
the
back of
the
camera, as indicated
by
the
black
line
T,
Fig.
11
, on
the
revolving platform.
Fig.
11
The
lens should
then
be pointed to
the
extreme
right
of
the
subject, permitting
th
e sliding scale
to
remain in positiQn.
The
black line T will
then
indicate
the
number
of degrees
the
picture will
include,
and
also
the
length of film, in inches,
with either
the
lOYz-,
18- or 24-inch lens, as
shown in Fig.
8,
page
9.
To
determine
the
amount
of film used,
by
the
indicator on the
top
of
the
Film Box,
add
to
the
13