BEAULIEU 4008 - Page 31

To
check
proper
contact,
press
on
the
power
switch,
and
see
whether
the
automatic
diaphragm
is
functioning
as
it
should.
Should
this
not
be
the
case,
adjust
the
lens
in
its
C-mount
so
that
proper
contact
is
made.
Note:
When
using
these
non-automatic
lenses,
take
into
account
the
advice
given
in
the
paragraph
entitled
"Manual
use
of
Lenses",
page
22.
Caution
:
When
you
change
lenses
(as
when
camera
maintenance
is
involved,
see
page
40),
never
put
any
object
into
the
film
gate.
A
very
thin
gelatin
filter
lies
just
behind
it.
Should
it
come
to
be
damaged,
the
camera
would
become
unserviceable
and
would
have
to
be completely
dismantled
for
repair.
8° Use of the photocell
for high-contrast scenes or subjects
The
cell,
on
which
the
light
rays
coming
through
the
lens
impinge,
is
activated
by
the
integrated
luminosity
of
the
scene
in
the
lens
field.
In
certain
cases
of
very
sharply
contrasted
scenes,
the
human
eye
will
interpret
these
contrasts
of
itself;
such
is
unfortunately
not
the
case
with
a
cell,
whence
the
need
for
precautions
if
certain
areas
of
the
field
are
not
to
be
over
or
underexposed,
errors
which
may
seem
impardonable
to
experienced
amateurs.
These
corrections
must
be
applied
with
the
Reglomatic
system
disconnected
if
the
camera
is
so
fitted.
Set
the
master
switch
to
"Manuel"
and
adjust
the
aperture
by
hand.
A/
Wide,
luminous-sky
backgrounds
-
Snow
scenes
When
the
sky
occupies
an
important
part
of
the
field
covered
by
the
lens
and
the
foreground
remains
in
relative
shadow,
the
sky's
brilliance
will
affect
the
cell's
reactions
to
the
point
of
provoking
general
underexposure.
In
such
a
case,
on
should
take
the
precaution
of
aiming
at
a
slightly
lower
point
or
at
part
31