Copying with the DURST DA
900
The URNOV copying cassette is inserted
into
the
enlarger head (5) in
place
of
the
negative
carrier
and locked
with
the
knurled knob.
To
control
the
focusing adjustment,
project
the
crossed hairs
of
the
ground glass
screen upon
the
base board (2) at
best
with
the
enlarger head
at
its
uppermost
position.
If
the
crossed hairs appear
out
of
focus, adjust
the
height
of
the
copying cassette by turning
the
knurled focusing ring
at
the
front
of
the
cassette
either
right
or
left.
This is locked
with
a
knurled
screw
which
must
be loosened before focusing and then tight-
ened again afterwards. Then
the
copying cassette is adjusted once
for
all. The green
filter
(37) is removed and
the
mirror
housing (7)
inverted so
that
the
mirror
faces forwards.
In
the
deflecting
mirror
you
can
view
the
usable proJection area und by raising
or
lowering
the
enlarger head (5) the
format
net
can be matched
up
with
the
original
illuminated by
the
RILU
unit. In doing thiS, make certain
that
the
original,
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