6
period
after
having been switched off,
they
are
let
burning
while
in
use. Exposure is carried
out
by means
of
a built-in
shutter
which
is manipulated at the wheel-grip (211.
2. Condenser for the
28/50
mm. lens combination
The
DANOCON
50
condenser (8) is slid in behind the serial number
plate (13).
To
do
this
the serial number plate (13) is opened by draw-
ing
it
down
with
the grip bar (22). Take the
twin
condenser by
its
grip (23)
and
insert
it
upwards so
that
the
two
hooks (24) at the
rear
of
the condenser mounting hang upon the bar (25) which
adjusts the
height
of
the condenser when the lens is changed.
To
check
if
the condenser (8) is properly seated, push the pushing bar
(26)
for
changing the lens
to
the
left
until
its
stop, so
that
the lens
with
the long focal length is brought into the path
of
beams. While
doing
this
the
twin
condenser (8) should move downwards.
After
you
have mounted the DANOCON
50
twin
condenser (8), the enlarger
head (5) is brought
to
its
uppermost
position
and the lamp switched
on
without
a negative in the carrier.
With
one
of
the
two
lenses in
the
path
of
beams and open diaphragm, centre the lamp by turning
or
adjusting
vertically
as
well
as
forwards and backwards the lamp
socket (27) until the projected picture is completely and evenly
illuminated.
9
