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Accessories
Tubes
Assembly
• All accessory tubes wh ich fit
between
t
he
optics carrier and
50
the
binocula
r
tube
are fitted in the
same
manner.
• In the dovetail ring of the optics carrier is a locating screw
wh ich must engage the notch in the accessory (page 35)
.
This is best accompl ished by
moving
the accesso ry
slightly
from
side to
side.
11-
Release
the
clamping
screw.
~
,
_
11-
Insert the
accessory
tube into the dove-
tail ring in the
same
man ner as the binoc-
ular tube
(page
35) and move it slightly
from
side to
side until the locating screw
engages the notch
.
11-
Retighten the clamping screw.
11-
Fit the binocular tube on the accessory
tube in the
same
manner.
Double-iris diaphragm
A
double-iris
diaphragm is built into the MZ16 and MZ16
A.
it is
operated by means of a
knurled
ring. A separate double-iris
diaphragm is
available
as accessory for the other
instruments.
The double-iris diaphragm for
MS5-MZ12s
can
be inserted between optics
carrier
and
binocular tube or video/phototube
.
Set the lever to
OPEN:
The double-iris
dia
ph
ragm (aperture diaphragm)
is
open.
The depth of field in creases as the lever
is moved from OPEN to
1.
Remember,
however, that
-
brightness decreases,
so
exposu re times become longer
- resolution
deteriorates.
Leica M
Stereom croscopes
-
Accessories
Drawing
Drawing tube
• The drawing tube is for both left-handers and
right-handers.
Fit the mirror
on
the left-hand or right-hand
side
of the optics
carrier.
11-
Fitthe drawing tube
between
optics car-
~
-
··
~
·.
rier and binocular tube as described on
.. ~
.
•
· •
·•
.·
·
,
page 50.
·
'"''
11-
Place a sheet of paper beneath the
mirror.
11-
Use
a
table
lamp
to illuminate
the paper.
11>
Move the lever to the
circle.
11>
Look into the binocular
tube,
position
the object, and focus on it.
11>
Move the lever to the black spot.
11-
Look into the binocular tube and balance
the brightness
so
that the object, the
drawing surface and the pencil are all
seen
together.
• In
general,
the
paper needs to be illuminated
strongly,
but
the
object
only weakly.
11>
Move the lens mount
of the
drawing tube forwards or back-
wards until the drawing su rface is sharp ly imaged.
11>
Now you can draw the feature.
• If you place
a
graduated scale beneath t he object and draw
its
intervals
as
well,
you
can easily
determine the image
scale on the paper.
Discussion tube
At
the
discussion tube two observers
see
the same
erect,
laterally-correct, three-d imens ional
image.
The assemb ly and use of
the
discussion
tube
are
described
in
the
separate user
manua
l
M2-263-0.
Leica
M Stereomic ros
cope
s-
Accessories
51
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