Leica MS5 User manual

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MI CilU S V IIM
Leica M Ster(•o-
•
microscO})(~s
U ser M anual
MICROSYS TEMS

D •· ar User
User Manual
Thank you for choosing our products . We hope that you will en-
joy the quality and performance of Le i ca Microsystems products .
In developing our instr uments, we have placed great emphasis
on simp l e, self-explanatory directions. In order to ut il ize all the
benefits of your new stereomicroscope, we suggest studying
this user manua l in de t ail. Should you have any questions, please
consult your local Leica representative. You will find the address
of the closest local representati ve as well as valuable informa-
tion about products and services from Leica Microsystems on
our homepage at www.leica-microsystems. com
We are gladly at your service. Customer service is a big thing
with us . Not only before the sale, but afterwards as well.
Leica Microsystems (Switzerland) Ltd
Business unit Stereomicroscopy
www.stereomicroscopy.
com
Your instrument is accompanied by a printed English user man-
ual. Additional language versions and information can be found
on the interactive CD-ROM . User manuals and updates are
availab lefor download on our homepage at
www.stereomicroscopy.
com .
This user manual contains an explanation of the safety regula-
tions, assembly, handling and accessories of the Leica MS5,
MZ6, MZ75, MZ9 s, MZ12 s, MZ16 and MZ16 A(if identical) stereo-
microscopes.
The special functions of the automated stereo-
microscope Leica MZ16 A can be found in the separate user
manual M2-116-0 .
Leica M Stereomicroscopes User Manual
3

Table of eontent s
Page
Overview
Illuminators
Safety co nce pt ........... . .. . .... .. ... . .. .. . .. ... . .. .. .. l:i
Transfo r mers .... . .. .. .... .... .. ...... .. . .. .... ... ...... 38
Symbols ............ .. . .. .. .. .. .. . . .... . ...... . ... ...... 9 Incident
lamp 6 V/10 W .... .. .. .... ... .. ...... ...... . ... . 40
Controls andfunctions .. .. .. . . .... ... ... .. .... . .. .. .. . .. 10
Incident lamp 6 V/20 W ... ..... . .. .. ... . .. .. ........ .. .. . 42
Cold light sources .... . ... . ........ . .......... . .... .. .. . 45
Use
Fiber-optic light guide .... ... . .... . .. . .. .. . ..... .. . ..... . 46
Changing the magnification ........ .... .. . .. ........ .. ... 12
LED illum i na t ion .. ... ..... .. ...... .... ...... .. ... .. ... .. 46
Ergonomics .. ... ....... .. . ...... .. .... ... .... .. .. . .. ... 14
Supply (line) lamp 25 W . .. . .. .. .. ..... ...... . .. ...... . .. 47
Interpupilla ry distance ........ .... ..... .. ..... . ... .. . ... 15
Coa x ial i ll uminator .. . .. ... . .... . ..... . .... . .. .. ....... .. 47
Eye point . . .. ... .. ........ . .... .. ... . .. .. .... .. . . .. ... . 15
Near -vertical illuminator ... .. ... . ...... .. . .. .... .. .. ... .. 48
Eye contact, eyec u ps . ..... . ..... . .. . .. .. .. . ... ... .. .. .. 16
Focusing .. ....... . ......... .... . .... . .............. . .. 16
Accessories
Microscope carrier:Stereoscopic and axial observati on . .. . 18
Fitting accessory tubes ... .. . ....... .. ... .... .. . .... ... .. 50
Diopte rsettings ............ . ... . .... .. ........ . ........ 20
Double-iris diaph r agm .... .. .. .. .... .. . ..... ... . .. ..... . 50
Drawing tube ,di scussion tube .... .. .... ... .. ......... ... 51
Assembly
Video/phototubes:
Overview : Components .. .. .. .. ..... .... . ... .. .. .. .. ... .. 22
Photograp h y, video, TV, filming, digital imaging . .. ... .... ... 52
Attachment fo r vertical and oblique observation ..... . .... .. 56
Stand
Graticules ............. .. . ......... ... .......... . .... .. 56
Profile column for incident light and transmitted -light stands .. 23
Stages, po l arization .. ...... .. .. .... .... .. ... ...... ... ... 57
Transmitted-li ght stand, bright fie l d, 20 W .. ... . ..... .. ..... 24
Transmitted-li ght s tand, bright and dark field ... .... . .. . . ... 26
Special notes
Transm itted-li ght stand HL .................. .. .. ..... .. .. 27
Tips and hints : What to do if .. .. ...... . ....... .. ....... ... 58
Swinging-arm stand ESD ... . .. .. ... . ... ..... .. ..... ..... 28
Care and maintenance ... ... ... . ........ .. ... .. ...... ... 59
Large swinging-arm a nd table-c lamp stands ... . .. . .. ...... 30
Calculating to t al magnification and field
of view diameter ... .. .... ........... . .... .. .... .... .... 61
Optics carrier, optical accessories
Opt i cal data for MS5, MZ6 .. . . .. .. ... .. ...... . .. ... ... ... 62
Spacer rings, objective combinations .. ... .... ... . .. .. ... . 32
Optical data for MZ7 5, MZ95 .... .. ... ..... ... .. .... .. .... 64
Microscope carri er ... .... ... .. . .. . .. . .... .. . .... .. .... . 34
Optical data for MZ125 , MZ16 , MZ16 A .. . .. ... ... . ...... .. 66
Optics carrier ... . .. .. ....... . .. . ........ . ...... . ... . .. . 34
Dimensions .. . .. . .. .. . ............. .. . ....... ... .. ..... 67
Binocular t ubes , optical accessories ..... ... .. . .... ... .... 35
Objective no s epie ce (MZ16 and MZ16 A) ...... .. ... . .. .... 36
4 Le i ca M Ste r eomicroscope sUs er Manu al
Leica M Ste r eomicro s copes User Manual
5

6
General directions Read the user manual and safety instructions before starting up .
Permitted uses
The Leica MS5, MZ6, MZ7 s, MZ9 s, MZ12 s. MZ16 and MZ16 A stereomicro-
scopes are optical instruments which
use magnification for improved
visual
iza ti on of objects, their details and specimens from technology and
natural sciences. The basic outfit, which includes a stand and a light
source, can be supplemented w it h vario us modules for photography, TV ,
dual station viewing
and other applications.
Prohibited • The use of the instrument in a different manner from
that de sc ribed in
uses this user manual can lead to injury, malfunction and damage.
• The Leica MS5, MZ6, MZ7s, MZ9s, MZ12 s, MZ16 and MZ16 A stereo-
microscopes must not
be used for eye examinations and operations.
• Do not fit different plugs. Do not dismantle optical systems or mechani-
cal parts unless instructions for doing so are given in the user manual.
Place • The Leica
MS5 , MZ6, MZ7s, MZ9s, MZ12 s. MZ16 and MZ16 A stereo-
of use microscopes are intended
ma inly for indoor use .
• If the stereomicroscope is used outdoors, protect it from dirt and mois-
ture. Lamps
and electrically-operated stands from Leica may not be
used outdoors.
Use in ESD The optics carriers MS5 , MZ6, MZ7s, MZ9s, MZ12s, MZ16 and MZ16 A, the
protected rooms binocular tube, Ergo
Tube™, ErgoWedge™ 5 °- 25°, the swinging-arm
stand
ESD and the cold light sources Leica L2 and CLS consist of ESD-
discharging material (surface resistance < 10 " ohms/squared, discharge
t1me <2 seconds, 1,000 Vto 100 V).
Servicing
Responsibilities
of person in charge
of instrument
- A connection socket for a 0 4 mm grounding cable is provided on the
microscope carrier.
-There are two connection sockets for 0 4 mm grounding cables in the
base of the swinging-arm stand.
Repairs may
on ly be carried out by Leica-trained service technicians.
Only original Leica spare parts may be used.
• Ensure that personnel who use the instrument have read and under-
stood this user manual and in particular the safety instructi
ons.
• Ensure thatthe Leica MS5, MZ6, MZ7 s, MZ9s, MZ12s , MZ16 and MZ16 A
stereomicroscopes are operated, maintained
and repaired on ly by
authorized and trained personnel.
Leica M Stereomicroscopes - Safety concept
Safety rf'g;ulations
Workplaces with stereomicroscopes facilitate and improve the
viewing task, but they also impose high demands
on the eyes
and holding muscles of the user. Dependent upon the duration
of uninterrupted activity, this may lead to asthenic trouble
and
muscular-skeletal pain so that suitable measures must be taken
to reduce the strain:
-perfect design of workplace (see p. 14). work content and
work process (frequently changing activities).
-detailed introduction ofthe personnel while considering
ergonomic
and organizational work-related aspects.
The ergonomic optics concept and the design ofthe Leica M
series
aim at limiting the strain on the user to the lowest possi-
ble level.
Direct contact with eyepieces can be a potential transmission
path for bacterial
and viral infections of the eye. Users should
be made aware ofthe potential risk of infection. The risk can be
kept at a minimum by using individ ua l eyepieces or attachable
eyecups (see
p.16) .
Electrically-operated items
The safety regulations listed below apply to the following items:
-Transmitted-light stand, bright field, 20 W (page 24)
-Supply (line) lamp 25 W (page 47)
-Regulating transformer 0- 7 V/40 W (page 38)
-Step transformer 4/ 5/6 V (page 39)
- Motor focus (separate instructions)
-Motori zed Leica MZ16 A
Liquids
Be careful when handling liquids.
If spilt
on the equipment, they can:
-cause the stereomicroscopes and accessories to become
electrically live, endangering personnel,
-cause damage to the equipment.
Power cables Inspect cables regularly for damage. Defective cables can:
-directly endanger personnel,
-cause the stereomicroscopes
and accessories to become
electrically live, endangering personnel.
Leica M Stereomicroscopes - Safety regulations 7

Cable routing
Opening the instrument
Supply voltage
Connections
Route cables with care. Make sure that personnel do not get
entangled with them . The instrument could fall over, fall down,
become damaged, damage other equipment, or cause personal
m Jury .
Only authorized Leica personnel are permitted to repair electri-
cal equipment. Before opening up the equipment, pu ll out the
power cable. If you touch the live interior of the equipment , you
may receive an electric shock.
Ensure that the vo l tage setting on the equipment is correct.
A
wrong setting can cause damage to the equipment.
When connecting power-consuming devices to the transform-
ers, do not exceed the maximum permitted loading, as this can
cause damage to the equipment.
Changing bulbs • Before changing a bulb, disconnectthe power cable.
8
Integration in
third-party products
legal requirements
Disposal
Conformity with
European Community
directive
• Never attempt to touch the inside of a lamp housing or
transmitted-light stand while the instrument is connected
to the power supply .
• Before changing a bulb, wait until it is cool, otherwise you
may burn your fingers.
The following must be observed if Leica products are build into
third- party products:
The manufacturer of the complete system or the person putting
it on the market is responsible for adhering to applicable safety
regulations, laws and guidelines .
Adhere to general and local regulations relating to accident
prevention and environmental protection.
The products described here must be disposed off in accor-
dance with applicable local laws and regulations.
The electrically- operated accessories for the Leica MS5, MZ6,
MZ7 s, MZ9 s, MZ12 s, MZ16 and MZ16 A stereomicroscopes are
constructed in accordance with the latest technologies and
provided with a statement of conformity with EC requirements.
Leica M Stereomicroscope s- Safety re gu lations
Symbols used in this user manual
Safety instructions
This symbol denotes information which must be read and
obeyed. Non-observance
- can put personnel at risk!
- can cause malfunctioning or damage to the equipment.
Warning about accessible hot places, e.g. bulbs.
Failure to respect it can cause burns!
Important information
This symbol denotes additional information or explanations
which promote understanding .
Action
..,.. This symbol within the text indicates that certain operations
must be carried out.
Explanatory notes
• This symbol within the text stands for additional information
and explanations .
Leica M Stereomicroscopes - Safety regulations 9

Overview
Stereomicroscope
Magnification changer
2 Engaging ratchet positions
3a Focusing drive
3b Coarse and fine focusing
Larger knob: Coarse focusin g,
Smaller knob: Fine focusi ng.
3c Adjustable ring
Changes the ease of movement
of the coarse/fine drive.
4 Clamping screw
Holds the optics carrier in the
microscope
carrier.
5 Clamping screw
Holds the binocular tube ( or accessory)
to the optics carrier.
6
Interchangeable objective
Achromatic , planachromatic or planapochromatic
Leica MS5
Binocular tube
7 Adjustable eyepiece tubes
Interpupillary distance adju stab lef ro m
52 mm -76 mm.
8 Wide-field eyepieces for persons wearing
glasses
Diopter setting adjustable wi th in the range
fr om +5 to -5, and eye cups adjustable.
9 Clamping screws
These hold the eyepieces in the
binocular tube.
10 ErgoTube™
The viewing angle is adjustable within the
r
ange 10 °- 50 °.
11 Built-in double-iris diaphragm
(MZ16/MZ16 A only)
• The special functions of the Leica MZ16 A are
shown in the user manual M2-116-0.
Leica MZ6
10
Leica M Stereo m ic r oscopes - Overv i ew
Leica MZ7s
Leica MZ9s
Leica de sign
by Erne st lgi/Christophe Apotheloz
Leica MZ12s
Leica MZ16
Le i ca M Stereomicroscopes - Overview
11

Use
12
Changing the
magnification
Ratchet steps
Magnification changer
• Zoom means continuous change of magnification.
Ratchets can be engaged for certain magnifications
(see below).
•
For zooming with MZ16 A, see the user manual M2-116-0.
MS5: 5 steps
MZ6 :6:1 zoom
MZ7 s: 7.9:1 zoom
MZ9 s: 9. 5:1 zoom
MZ12 s: 12 .5:1 zoom
MZ16 and MZ16 A: 16:1 zoom
• The mag ni fication changer can be operated from either
the right or the left side .
~Look into the eyepieces.
~Focus on the object ( page 16).
~Turn the magnification changer
to the desired position .
MZ6: 0.8, 1, 1.25 , 1. 6, 2, 2. 5, 3.2
MZ7 s: 0. 8, 1, 1.25, 1.6, 2, 2. 5, 3. 2, 4
MZ9 s: 0.8, 1, 1. 25, 1.6, 2, 2.5, 3. 2, 4, 5
MZ12 s: 1, 1.25 , 1.6 , 2, 2.5,3.2, 4, 5, 6.3, B
MZ16 :0. 8, 1, 1. 25 , 1. 6, 2,2. 5, 3. 2, 4, 5, 6. 3, B, 10
• Engage the ratchets whenever magnifications need to be
exactly reproducible.
~For MZ6 , MZ9 s, MZ12 s and
MZ16: Press the switch.
~For MZ7 s: Turn the knurled ring
counterclockwise.
For setting ratchets at the MZ16 A,
see the use r manual M2-116 - 0.
Lei ca MStereomicroscopes - Oper ation
Scale of
magnifications
Magnifications
and fields
of view
Magnification with
MZ12s/MZ16
planachromatic and
planapochromatic
objectives
MS5, MZ6: Display of magnification factors from 0. 63-4 .
MZ7s: Display of magnification factors from 0. 63-5 .
Corresponding scales for other objective and eyepiece combi-
nations can be affixed to the rotary knobs (page 34).
MZ9s: Display of magnification factors from 0. 63-6.
MZ12s: Display of magnification factors from 0.8- 10 .
MZ16, MZ16 A: Display of magnification factors from 0. 71-11 .5
MZ16 A: For the digital display of the magnification see the user
manual M2-116-0 .
The tables on pages 62 - 66 provide information about the
magnifications and field of view diameters as afunction of the
magnification
changer position of the eyepiece-objective
combination
used .
When the MZ12 s/ MZ16 planachromatic and planapochromatic
objectives are used on the Leica MS5, MZ6, MZ7 s and MZ9 s,
the magnification is increased by the factor 1.25 x. This factor
is taken into account in the tables.
Magnification on Magnification on
MZ12 s /MZ16
MS5/MZ6/MZ7 s/ MZ9 s
1x plan/planapo
1. 25 x
1.6x
planapo 2x
0. 63 x planapo O.Bx
0.5 x plan
0. 63 x
0.8x
plan
1x
2x
planapo 2.5x
Leica MStereomicroscopes -Operation
13

14
Preconditions fm
working comfortably
Ergonomics, viewing height
• Pay great attention when setting up you r stereomicroscope.
You wi ll only benefit fully from the outstanding op tical and
ergonomic advantages of the instrument if you set it up
precisely in accordance with the directions already given.
• For fatigue-free work, use the ErgoModule™.
• Arrange your workplace
as well as possible, and pay
attention to the heights of chair and table.
• When sitting, use the entire seat area and also the back
support of the chair.
• Support your forearms.
• During work breaks, stand up and move arou ndfor exercise.
Please also observe the note on p. 7.
Ergonomics The reasons why users often cannot work comfortably with
the 45 ° tube are the differing heights of the outfits, the various
accessories
and working distances, and the fact that the
same ins trument is often used by several people of differing
builds.
This problem can be effectively solved by using the
Leica ErgoModule™.
Viewing height,
viewing angle
If you have problems with the viewing configuration on your
stereomicroscope,
ask your Leica consultant forthe most
ergonomic
Leica so lutions.
The viewing height is correct when your head and back are
comfortably positioned.
• On the Ergo Tube™, the viewing angle
is adjustable from 10 °- 50 °.
lliJ> Holding the eyep i ece tubes at their
bases, swi ng them up or down (see
arrow).
. ., , , ~0 '
" ~
10°
Lei ca M Ste r eomi crosco pes - Op era tion
ErgoModule™
- ErgoWedge™ 5° - 25 °
- ErgoWedge™ ± 15 °
-ErgoModule™ 50 mm
- The Ergo Tube™ 45° has eyepiece tubes wh ich are 65 mm
longer than the standard ones.
Magnification factor 1.6 x.
MZ16 A: The magnificati on factor can be toggled on and off
using the OPT key.
-ErgoModule™ 30 - 120 mm
Relubrication may be required
after several years (please
send
the item to Le i ca Service).
Ergo objective The achromatic Ergo objective 0.4 x-0.63x can be used to
ergonomical ly and accurately focus in the range of 90 mm
(63 . 5-153 .5 mm) without changing the viewing height. At the
same time, magnification and working distance can be
changed without time-consuming change of objectives.
Motor focus Frequently repeated fine-motor tasks, such as focusing by
hand , can lead to muscle fatigue and hand problems. Us i ng the
Leica motor focusing system, every equipment can be moved
up and down without applying force.
Interpupillary distance, eye contact
Interpupillary distance The interpupillary distance is correct
when
you see asingle circular field when
viewi
ng wi th both eyes.
~ 76mm
~
lliJ> Look into the eyepieces and use bo th
hands to move the eyepiece tub es closer
together
or further apart.
Locating the exit pupil The distance between eye and eyepiece measures approx.
22 mm for 10 x /21 Bwide-field eyepiecesfor persons wea ring
gl a sses and 12 mm for 10 x /21 wide-fi eld eyepieces.
your
eyes un til you can see the complete ~
im a ge field without corner cutting.
lliJ> Slowly approach the eyepieceswith !I ~ ~ . "' 'f:? "' l ' Yf
Leic a M St ereom icroscopes - Oper at ion 15

16
Selecting the degree
of eye contact
Soft
eyecups
You do not wear glasses and prefer close contact with 1Ox /21 B
wide-field eyepieces for persons wearing glasses:
~Holding the diopter ring,turn the eye cup
counterclockwise until it is released.
~Pull the eyecup upwards.
~Ho l d i ng the diopter ring,
turn the
eye cup clockwi se.
Persons wearing glasses need the
whole ofthe available distance.
Move the
eye cups to the lowest
position.
The 1D x/ 21 Bwide-field eye pieces for persons wearing glasses
are supplied with soft eye cups, whi ch can be attached to the in-
tegrated
eye cups made of hard plastic to achieve the fo llowing:
-Prevent eye infections if several users are working at the
same instrument (see
p. 7).
-Protect yo ur glasses from being scratched.
The
10 X/ 21 wide-field eyepieces are supplied with laterally
tapered soft eyecups.
Setting the working distance, focusing =obtaining a
sharp image
• To focus, use the fo cusing drive to ra i se or lowerthe stere-
omicroscope until the feature of interestis
in focus = working
distance to the objective.
The working distances
ofthe various objectives are listed in
the tables on pages 62- 66 .
• The focusing drive can be operated from either the right or
the left side.
• When focusmg on a new object, always start with the lowest
magnification, because the largerfield of view
ma k es the
o
bj ect easier to find.Afterwards, select the desired magnifi-
cation.
Le ica M Stereomicrosc opes - Ope ration
Coarse/fine drive
Adjusting the free
mning of the focusing
drive
Focusing drive
MS5- MZ9s
Focusing drive,
coarse/fine
MS5- MZ12s
Focusing drive,
coarse/fine
MZ16, MZ16A
~Place the object beneath the ob jective.
~Engage the lowest magnification
(page
12).
~Look into the eyepieces.
~Using the rotary knob, bring the
object into focus.
~Focus approximately with the
larger knob.
~
Fine-focus with the smaller
(concentric) knob.
Is the focus movementtoo loose or too tight? Does the outfit
tend to slide downwards?
You can adjust the movement in
accordance with the weight ofthe outfit and with your own
personal requirements:
~Hold the drive knobs firmly wit h
both hands
and turn them in
opposite directions until you
obtain the required degree of
resistance during focusing.
~Turn the black ring on the
right-hand drive knob until
you obtain the required degree
of resistance duri
ng focusing.
~Hold the left fine drive.
~Turn the right fine drive until the desired resistance during
focusing
is reached.
Leica M Stereomicroscopes -Operation
17

18
Microscope carrier
for stereoscopic
observation
Stereoscopic
observation
Microscope carrier
• This microscope ca rrier permits only
stereoscopic observation, using both beam paths.
• The microscope carrier can be fi tted to the drive
housing in either of two
posi tions (see page 34) :
•
The optics carri er can be turned sideways in
the microscope carrier ift he user needs to
work from the si de:
..,. Re l ease the clamping screw.
..,. Turn the optics carri er sideways
as required.
..,. Retighten the cl amp i ng screw.
Microscope carrier AX
The stereomicroscopes can be equipped with t he microscope
carrier
AX f or stereoscopic and axial observation instead of
the standard
mic roscope carrier (page 34) .
Different mode ls are avai l able for MS5, MZ6, MZ7 s, MZ9 s and
for MZ12s, MZ16 and MZ16 A. The achromatic objectives and
the planochromatic lx fit in the th r ead in the AX microscope
carrier for
MS5 , MZ6, MZ7s, MZ9s (p. 33).
The planochromatic and planapochromatic objectives fit in the
thread
in the AX microscope carrier for MZ12s, MZ 1 6, MZ16 A
(p. 33). In addition, the AX microscope ca rri er features a clamp-
ing screw fo rfixing it in one of 3 positions and an aperture which
can be turned manua l ly (see below). Otherwise, the use of and
switchi ng to the left, middle and right position are identical.
•
The opti cs carrier cannot be turned sideways in the micro-
scope carrier
AX .
A three-dimensional
image is required for examining plastic
objects and for working.
..,. Shift the stereomicroscope to the central positi on .
Le1c a M Stereomicroscopes - Ope ration
Axial observation
Aperture
The parallax-free i mag i ng produces more prec i se results in
photogr aphy, measuring and polarization.
..,. Shift the stereomicroscope to the left
or the right positi on. The object is now
located directly beneath either the left
or the right beam path .
• When photographing or measuring, se-
lectthe beam path above which the pho-
totube or measuring graticule is located.
A rotating aperture is
build into the AX microscope carri er. lt
prevents interfering reflecti ons during axial observation with
coaxial incident illuminator and quarter-wave plate.
• With the
AX microscope carrier for MS5, MZ6, MZ7s, MZ9s,
the aperture automatically turns during the moving process.
• With the AX microscope carrier for MZ12s, MZ16, MZ16 A,
the aperture is located underneath the microscope carrier
and must manually beturned as follows:
Please note:
- In the position for stereoscopic observa-
ti
on through both beam paths, turn the
aperture counterclockwise until it stops.
Otherwise the field of view is unde r ex-
posed (vignetting).
-
In the pos ition for axial observation
through
the right or left beam path, turn
the aperture clockwise until it stops.
Leica M Stereomicroscopes -IJperation
19

20
Tips for your work
[I]
A Preparations
Adjusting dioptersettings and parfocali1y
• The dioptr ic range is from +5 to -5.
The fo ll owing adjus t ments must be carried out on ly once by
each user. The procedures for adjusting the diop t ric setting and
the parfocality are somewhat differ ent if an eyepiece conta i ns
agraticule. Refer to the user manuals for the MPS modular
photomicrographic systems or for measuring.
~Install the lamp .
~Set the interpupi ll ary distance and,
if necessary, the viewing height.
~On the video/phototube: Move the
l ever to position " VIS " and open the
diaphragm.
~Set the double -iris di aphragm to "OPEN."
~Adjust the eyecups.
~Set both eyepieces to zero.
~Set the microscope carrier AX for
stereoscopic observation.
B Focus on the 1. Place aflat test object under the
test object objecti ve.
2. Engage the lowest magnification
position.
~Use the coarse focusing drive to set
the working di stance (page 16) .
3. Look i nto the eyepieces
~Use the foc using drive , to bring
the test object in to foc us.
leica M Stereomicrosco pes - Op er at ion
C Adjusting
dioptric settings
D Inspecting
parfocality
4. Engage the highest magnification position.
5. Optimize the focus using the focusing drive.
6. Engage the lowest magnification
positi on.
7. Do not look into the eyepieces.
~Rotate the eyepieces counterclockwise
in the"+" direction as far as the stop
(+5 diopters).
8. Look into the eyepieces
~ Slowly rotate each eyepiece
individually in the" -" direction until
each eye sees the ob ject sharply
imaged.
9. Engage the highest magnification
position.
10. Refocus if necessary.
11. Slowly move t he magnification
changer
from the lowest magnification
to the highest.
• The image sharpness must remain
constant (parfocal). Otherwise,
repeat the procedure.
Leica M St ereom i croscopes- Operation
21

Assentbly
22
The components
1a Inc ident-light base wi th ste~ge pla te
1b Tra n sm itted-light base with g lass stage ple~ t e
2a Side- f aced column with dri ve h ous i ng ,coarse/fine
2b Side- f aced column with dr i ve hous i ng , 300 mm or 500 mm
3 Microscope carrier
4
Op tics ca rr ier
5 Inte r ch angeable objective
6
Binocula rtube
7
8 Wide-fieldey
ep i ece for spectaclewearers,with eyecups
Various ErgoM o dule™ or accessories for video, photography,
drawi ng, fluorescence, coaxial incident li ght etc.
Le 1ca M Stereomicroscopes-Assembly
Side-faced column-+
incident-1 ight base
Side-faced column -+
transmitted-light base
Stand
Incident-light stan d
~ Remove the st age pla t e.
~ Insert 3 Al i en screws into theund erside
of th e baseplate and secure th em to the
bottom end of the side -faced co lu mn .
~Insert the stage pl ate.
Tofit the microscope carrier and the ste reomicroscope,
see page 34
Transmitted-light stand
~ Pu ll the power cable ou t of the socket in the stand.
~ Remove the gl ass stage pla t e.
~ Carefully invert the transmitte d-
light base and remove 7 Alien
screws f ro mt he base.
~ Lift off the lower par t ofthe base .
~ Reve r se the u pper part of the base .
~ Insert 3 Alien sc r ews into the cover
pl ate from beneath and secu re
th em to the bottom end of t he si d e-
faced column .
~Replace and secure the base.
~ Insert the glass stage plate.
~F i t t he microscope carrier and the
stereomicroscope
as descri bed
on page 34 .
Le i ca M Stereomicroscop es -Assembly
23

Fitting the bulb
Filters
Starting up
24
Transmitted-light stand, brightiield, 20 W
&, Follow the safety instructions given on page 7.
~Fit the side-faced col~mn to the transmitted-l ig ht base as
described on pa ge 23 .
&
Never touch the bulb when it is hot.
Y . b ou may sustam urns.
• Do nottouch the new 6 V/20 W halogen bulb directly with
your fingers, because finger marks can cause it to crack
when heated.
Remove finger marks immediately with a cloth dipped
in pure
alcohol.
~ Insertthe slider together with the
bulb socket.
~ Hold the new bulb in a cloth an d push
it into position.
~Push the slider caref~lly but complete-
ly back along t
he ra il to the stop.
• The transmitted-light stand contai ns a KG1 filter.
•
Yo~ can insert other 0 50 mm filters if you need them:
~ Pull out the slider.
~ Insert the 0 50 mm filter.
~ Push the slider caref~lly but
completely back along t he
rail to the stop.
The ex-factory setting of the voltage se lector is 230 !for volt-
ages between 200-240 V) and t he fuse holder contains two
160 mAT fuses.
For
100 - 120 V power supply:
~Se t the voltage se lec tor to 115 .
~ Fit the enclosed two 315 mAt fuses
in the f
us e holder instead ofthe
two 160 mAT fuses !see the section
"Changing fuses" o n, the right).
~ Conn ect the power cable tothe socket
ofthe base and to t he power source.
Lei ca M St€r eomicro sc op es - A ss embl y
Changing fuses
Transmitted or
incident light
Switching on the
transformer
Transmitted light
(bright field), or in-
clined transmitted light
Transmitted light,
bright field
Inclined
transmitted light
Use :
-Two
160 mAT fuses for voltages between 200 - 240 V.
-Two
315 mAT fu s es for voltages between 100 - 120 V
!see the section "Starting up " on the left).
~
-,11~~' ~ ~~-·
~Disconnect the power cable from the stand. ~
~ Pull out the f~se holder.
~ Fuse at rear: Press o~t downwards.
~Spare fuse at front Pull out sideways and
insert into holder at rear.
~ P~sh the fuse holder back into po sition.
• Connect an incident lamp to the transmitted-light stand,
if required.
• Either transmitted light or incident light can be switched on.
~ For transmitted light
Switch in position I.
~ For incident light
Switch in position 11.
~ Use thumb wheel to
adjust brightness.
~On the rear of the stand: Use the thumb
wheel to switch on the transformer and
to adjustthe brightness.
~ Switch on transmitted light.
Bright field is s~ i table for examining translucent objects featur-
ing contrasting structures. The object is directly illuminated
from be
low and is seen in its natural colors against a bright
backgro~nd.
~ For transmitted light, bright field:
Pu ll lever forwar ds.
Inclined tr a nsm itted light whi chtravers es the object obliquely
will
p rod~ c e effects advantageous for observi ng small translu-
cent objects such as foraminifera and fish eg gs .
~ Move the lever slowly towards the col um n of the stand until
the desired effect 1s obtaine d.
Lei ca VI St ere omi cros co pes - Asse mb ly 25

26
Transmitted-light stand, bright and dark field
The illumin at i on of the transmitted-light stand bright and dark
field consists of a fi be r-optic light guide and a light source.
.1.\. Observe the safety regulations from the
~ manufacturer ofthe light source.
..,. Unplug the fiber-optic light guide f rom t he con11ect i on in
the stand.
..,. Fit the side-faced column to the transmitted-light base as
described on page 23 .
..,. Fit the microscope carrier and stereomicroscope as
described on page 34 .
..,. Attach t he fiber-optic light guide att he stand and t he
light source.
Starting
up Before us i ng the light source, read the corresponding user
manual.
Transmitted light.
bright field
Transmitted light,
dark field
Bright field is suitable for examining translucent objects featur-
ing contrasting structures. The object is di r ec tly illuminated
from be l ow and is see n in its natural colors against a bright
background.
..,. Slide handle to the right until the
stop: bright field.
Dark field offers mo re information for objects poor in contrast
with rather poorly marked or very fine structures.
In this case,
the light beams penetrate the object at a flat angle. Fine detail
structures and contours contrast brilliantly and brightly from
dark background.
..,. Slide the handle out to the right:
dark fiel
d.
Leica M Stereomicroscopes -Assembly
Transmitted-light stand HL
Column-+ Base The column seat contains Alien screws.
..,. Remove the glass stage plate.
..,. Invertthe transmitted-light base and place it on a table.
..,. Hold column against the column seat from underneath.
..,. Insert the Alien screws into the co l umn from the top and
tighten them.
..,. Invert the transmitted-light base and insertthe glass
stage plate.
..,. Fit additional components such as the microscope carrier
and optics carrier (page
34) .
Illumination Add a very luminous cold light source and a light guide with
Accessory condenser
-+Basis
Use
Tilted mirror
a channel to the transmitted-light stand
(TVC, active 0 9 mm).
..,. Insert light guide into the base at the rear.
..,. Connect light guide to the light source.
For stereomicroscopes with high apertures such as Leica
MZ12s, MZ16 and MZ16 A wit h objective 1.6 x, the resoluti on
can be increased by inserting an accessory condenser.
..,. Push the accessory condenser in to the l ens holder at the
underside of the transmitted-light base
and secure it with
2Alien screws.
..,. Turn on the light source according to the manufacturer's
user manual
and adjustthe light intensity.
..,. Place a transparent object on the glass stage plate and
focus.
The built-in mirror features a clear
and an obscured side and
can
be rotated and moved. The obscured side provides a dif-
fused illumination.The angle of in cidence in the specimen
plane changes depending on the position of the mirror so that
the transmitted light bright field via oblique illumination can also
generate an illuminati on similar to dark field.
..,. Rotate and move the mirror with t he black rota ry kn ob on the
right si
de .
..,. Adjust exact bright field and maximum illumination: move
mi rrorto the stand column until it stops.
Rotate the mirror until it engages inthe
45 ° position.
Le ica 1\1 Ster eo microscopes - As se mbly
27

Assembly of column~
base
Safety ring
~ column
Cross-member
~
column
Horizontal arm
~
cross member
Drive housing
~
horizontal arm
Swinging-arm stand ESD
The swinging-arm sta nd ESO is of conducting material [s urf<Jc e
r es istance <10
11
Ohm /squared, dischargetime <2 secon ds from
1, 000 V to 100 V) .Two sockets for connecti ng 0 4 mm ground
cables are provided
on the base.
~ Inse rt 4Alien screws into the base
fr om beneath and securethem to
the
end of the column.
,&.. The safety ring secures the instrument and must always
• ~:!;:;:~;~~~;~:· ~. """~ornbO< tl
~ Retighten the clamping screw. ~
~ Lower the cross-member onto the
safety ring.
~ Retighten the clamping screw .
~ Slide the horizontal arm into the
cross-member with the connecting
piece towards you.
~ Retighten the clamping screw .
~
~
• The drive housing I microscope carrier can be fitted to
the horizontal arm in either of two positions (see page
34).
• The circular port in the microscope
carrier accepts
an illuminator.
~ Insert the pe g of the in clinable focusing
drive into the connecting piece.
~ Retighten the clamping screw.
Optics
carrier-+ ~ Fitthe optics carrier in the Q
28
microscope carrier microscope carrier.
~Turn the optics carrier sideways in
the microscope carrier as requir ed .
~ Retighten the clamping screw.
Le ica M Stereomicros cop es - Assemblv
l ' '
Focusing
Tilting
Altering the
working distance
Sideways movement
Altering the overhang
The focusing knobs are located on the inclinable drive housing.
Is the focus movement too loose or too tight? Does the outfit
tend to slide downwards?
You can adjustthe movement in
accordance with the
weight ofthe outfit and with your own
personal requirements:
~ Hold the drive knobs firmly with both
hands
and turn them in opposite direc-
tions until you obtain the required degree
of resistance during focusing.
Possible adjustments
~ Release the clamping screw.
~ Tilt the instrument.
~ Retighten the clamping screw .
~ Release the clamping screw .
~ Raise or lowerthe cross-member as re-
quired together with the horizontal arm.
~ Retighten the clamping screw .
Reposition the safety ring (see page
28).
~ Release the clamping screw .
~ Move the instrument sideways
on the crass-member.
~ Retighten the clamping screw .
~ Release the clamping screw.
~ Displace the horizontal arm.
~ Retighten the clamping screw .
Le i ca M Stereomicros co pes -Ass emb ly
29

30
Large swinging-arm and table-clamp stands
Table-clamp stand 11>- Use the clamp to secure the coiLJmll to
atable top 20 mm - 50 mm thick.
Swinging-arm stand 11>- Insert 4Alien screws i nto the base f rom
Safety ring -+ co l umn
Safety ring -+ column
limitation
Drive hous i ng -+
horizontal arm
beneath and secure t hem to the end oi
the column.
.I.\ The safety r ing secures the instrument and must always
~ be positioned beneath the horizontal arm.
11>- Position the safety ri ng with the screw head u ppermos t and
towards you, and slide it down the column .
11>- Re tighten the clamping screw.
11>- lower the horizontal arm onto the safety
ri ng , with its end poi11ting towards you.
11>- Ret ighten the clampi11g screw.
The screw head must engage the notch . lt
limits the lateral movement. lt may not be
removed, and neither may the safety ring
be milled down.
If the horizontal arm is swung out beyond
the limit, the instrument may fall over .
Th is section describes the assembly of the focusing drive with
side-faced carrier
rod . To fitthe focusing drive with peg , refer
to page 28 .
11>- Re lease the clamping leve r.
11>- Tilt the carrier rod downwards.
11>- Retighten the clamping lever.
11>- Slide the dri ve housing with side-fa ced
carrier rod on to the horizontal arm.
11>- Ret igh ten the clamping lever.
The clamping levers can be posi t ioned
as required.
11>- Pu ll outthe c lamp ing lever a long
its axis and turn it.
Leica 1\11 Ste"eomicroscopes - Assembly
Microscope carrier-+
dr i ve housing
Optics carrier -+
microscope carrier
Tilting
Focusing with
coarse/fine drive
Altering the working
distance
Sideways movement
11>- Secure as des c rib ed
on page 34.
11>- Secure as described on page 34 .
Possible adjustments
11>- Release t he clamping lever.
11>- Tilt the instrument.
11>- Retighten the cl a mping lever.
11>- Set large distances with the larger
knob.
11>- Fine-focus with the smaller ~concentricl
knob.
11>- Using the ring on the right-hand drive
knob, adjust the ea se of movement
of the d ri ve.
11>- Re lease the clamping screw.
11>- Raise or lowerthe
horizontal arm .
11>- Retighten the clamping screw.
Reposition the safety ring ~see page 301.
11>- Re l ease the clamping screw.
11>- Pu ll out or push in the
horizontal arm .
11>- Retighten the clamping screw.
During the sideways movement,
observe the limit stops tsee page 301.
Altering the overhang 11>- Re lea se the clamping screw.
11>- Di splace the horizontal arm.
11>- Re tighten the clamping screw.
Leica M Ste reo mi c ro scopes - Ass em bly 31

Optics carrier, optical accessories
Spacer ri ngs Sp ace r rings are required in order to attach the obje ctives l or
cert ai n instr ument con ligurations.
• The L eica MZ95 is supp liedwith a sp a cer ring (1 0 446 393 )
f
or the smalle r-dia meter achromatic o bj ecti ve s and lx
p
la n ac hrom atic objective. When t he s pace r ri ng has bee n
re mo ved by app lyi ng t he t oo l prov ided, the l arg er-di ameter
p la n ach rom at ic an d pl a napoc h roma tic ob jectives for t he
M Z125 / MZ 16can be used .
• The L eica MS5 ,MZ6 and M Z7 5c an al so be equipped wi th the
lar ge r-d iame t er plana chromatic and planap oc hr omati c oo j ec -
tives for the MZ 12 5/MZ 16 if asp ac er ri ng is fitted ( 10 446 1 72 ).
• W hen the MZ125 / MZ 16 planac hroma ti c and pl anapo-
ch rom atic o bj ec tive s are u se donthe Le i ca M S5 , MZ6 , M Z7 s
an d MZ 95 , th em ag n if i ca ti on is incr eased by the fac tor 1 .2 5x.
· ~
~ ~ 104453 71 MZ7 s
10 44 6 27 2 M l9 s
~ 10445614 Ml6
10 445 613 MS 5
~
10 411 589 1x
10 422 562 1.5 x
10 422 56 1 2x
10 4 73 832 0 .8x
10 445 201 0.63x
10
422 563 0.5x
10 422 564 0. 32x
Ach romat
10446275 1x
Pl an
@ 103 15300
10 445 352
32
~
10445 1 72
t
~
10 44 6 157 0.5x Pl an
10 44 7 1 48
0 .4-0 . 63x
E rgo
10 44 7 075 O .Bx Pl an
10 44 7 1 57 1x Plan apo
10 447 1 01 2x Plan apo
104 12 6 50 1. 6x Pl ana pa
10 44 6 2 36 0. 63 xPl ana pa
Pl an/Pianapo
e
10 36 7 929
1 04 11 5891x
10 422 5 62 1. 5x
10 422 56 1 2x
10 4738320. 8x
10 445 2 01 0. 63x
10 422 563 0. 5x
I0 422 56 40. 32 x
10
44 6 275 1x
Pl an
@ "10 315305
10 "45 35 2
l ei ca MS te re om icroscopes - Assem bly
10 447 1 57 1x Pl an
10 44 61 57 0.5x Pl an
10 447 0750. 8x Plan
10 445 230 1x Planapa
10 447 101 2x Pl ana pa
10 4726 50 1.6 x Pl ana pa
10 445 236 0. 63 x P la na pa
Pl an/Piana po
e
103679 Z9
Objt•<·tive eombinationH
~~
~s
0 0
j +
~ ~
~~
"' "' 3
~
::;
::;
0 0 0 0
"'
+
;]
+
u
u
"f "f "f
~ ~ ~ ~
u u u
~
~ ~
"'
~ 3
::;
0 0 0
0
"'
j
u
::;; ::;; ::;; ::;; ::;;
::;;
::;;
~
1'I 1'I 1'I ~
~ 2
u "' 3 3 3 3
~ 3
::;
0 0 0 0 0 0 0
"'
"' "'
j
"' "' "'
u u u u u u
~
~ ~
"'
~ 3
::;
u 0 0
0
~ ~
0
"'
j
u
::;; ::;; ::;;
::;;
::;; ::;; ::;;
N
1'I 1'I 1'I 1'I
~ ~
~
"'
~
"'
"' "'
"'
"'
::;
::;
::;
~
::;
~
~ ~
0 0 0 0 0 0 0
"' "'
;] j j ;]
"'
u u u
::;;
::;;
::;;
::;; ::;;
::;; ::;;
~
N
1'I 1'I 1'I
~ ~
~ ~
"'
~
"'
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3
~ ~
::;
~ ~
0 0 0 0 0 0 0
"'
"'
"'
"' "'
"' "'
u u u
'-' '-'
u u
~
.,.,
[;;
~
~
0 "' c;
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~ M
., 0 "' N
= :i 3
~ ~
N
~
~
:;::
~ ~ ~ ~
~ ~ ~ ~
g
~
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N
~
~
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~
CL
0
:=
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:=
0 0 0 0 0 0
~
6 "'
=
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w a:
a: a: a: a:
a:
leica MStereomicr os copes User Manual 33

Microscope carrier~
drive housing
Microscope carrier
The microscope carri er can be attached to the fo cus i ng drive in
2positions:
• For short working distances a nd for
fl
at objects, use Pos iti on 1.
Use this position also in con junction
with the attachment for vertical
ar1d
ob l ique observation ( see deta i led in-
structions I.
• Use Po si tion 2for long working
distances
and for bulky objects.
Ill> U se an Al i en screw to secure the micro-
scope carrier
in the position required.
A connection
socke t for a0 4 mm
grounding cable is provided on the
microscope carrier.
Microscope carrier AX • Different models are available for MS5 ,
34
Optics carrier~
microscope carrier
Apply the adhesive
scale of
magnifications
MZ6, MZ7 s, MZ9 s and for MZ12 s, MZ16
and MZ16 A(seep. 181 .
•
The microscope carrier AX can only be
fitted in posit ion 1 to the focusing drive.
Optics carrier
Ill> Gently lower the opt i cs carrier
into
the microscope carri er.
.... Use the screw to secu re the optics
carrier inthe
pos ition required.
Only for MZ75:
.... Remove the sc rews.
Ill> Remove the rot ary k nob s.
.... Apply the adhesive scales.
.... Replace the rotary knobs .
Leica M Stereomicroscopes -Assemllly
&r
l :: 1
Binocular tube
Ill> Release the clamp i r1g screw.
• If you have an accessory such as an
ergo module (pa ge 14). a coaxia l illumi-
nator (page 471 or avideo/phototube
(page 521, fit it now to the opt i cs carrier.
Tighten the clamping screw.
Ill> Tilt the binocular tube and insert the
edge of its dovetail ring beneath the
two lugs on the opti cs carrier.
.... Move the binocular tube from side to
side until the locating sc rew on the
opt i cs carrier engages the guide.
Ill> Retighten the clamping screw.
Optical accessories
Eyepiece .... Insert a graticule, if necessary (page 56).
Objective
&
.... Release t he clamping screws on the eye-
pieces.
Ill> Insert the eyepieces fully into the eye-
piece tubes. Check that they have seate d
correctly.
Ill> Tighten the cl amping screw.
• You can extend the overall magnification
range by using 1D x. 16 x, 25 x and 40 x
wide-eyepieces for persons wearing
gl
asses.
Hold the objectives dur i ng assembly and disassembly to pre-
ven tt hem from fa lling on the stage plate. This applies parti cu-
larlyto the 2x planapochromatic ob jective, which is very heavy.
Remove the specimens from the stage plate.
Ill> Screw on the se lected objecti ve counter-
clockwise.
~
• Some in st rumen t configurations r equ irespacer ri ngs in order
to secure the objectives
(page 32) . These ri ngs are fitted and
re moved us i ng the t ool prov ided .
• The Leica MZ9 sis supplied with aspacer ri ng for the achro-
mat ic objectives and for t he 1x p lana ch r omatic objective.
When t
he spacer r ing has been removed by applying the too l
prov
ide d, th e larger- dia meter planacllromatic and planapo-
chromatic objectives for
th e MZ125/MZ16 can be used .
Lei ca M S te r eom ic ro sc opes -Assembly
35

36
Preparation
Assembling
l x planapochromatic
Objective nosepiece
• Only for leica MZ16 and MZ16 A
-Hold objectivesduring assembly
and disassembly to p re vent them from
falling on the stage plate.This applies particularlyto t he 2x planapochro-
matic objective, whi ch is very heavy. Remo ve the specimensf rom t he
stage plate.
- The ad justable ring nutwith the 1x planapochromatic objective is fastened
with 2 Alien screws after the adjustment. loosen the Alien screws if you
need
to remove the objective.
-Attach t
he limit stop to the stand column. lt preventsthe 2x objecti ve fr om
hitti ng the limit stop when the objective nosepiece is rotating, if the work-
ing distance was changed x
whi le worki ng with the 1objecti ve .
- Caution: Carefully rotate the objecti ve nosepiece and take care not to
pinch your fingers between column
and objective or objective nosepiece.
MZ16 A:When changing to objective l x or 2x, press the OPT+ SEL function
keys simultaneously.
The displ ay shows the curr enttotal magnification, and
in REF mode it shows the current measurement with objecti ve 1x or 2x.
A 1or 2
in front of the value indicates the selected objective.
Remove the securing strap from the objective nosepiece:
~ Remove both screws (at the bottoml.
Leica MZ16
and MZ16 A are delivered with athreaded adapter for objectives.
Remove the adapter to use the objective nosepiece.
~ Invertthe optics carrier.
~Loo sen 3 screws and remove the adapter.
The objective nosepiece features two threads:
- a fixed thread for the 2x planapochromatic objective
- a thread with 2 Alien screws fo rthe l x planapochromatic objective with
adjustable ring nut. Th e adjustable ring nut is supplied separately and used
to adjust the parfocality between both objectives.
Invert the objective nosepiece to simplify the assembly ofthe objectives.
~Sc r ew on the adjustable ring nut on the thread ofthe l x planapochromatic
objective until the limit stop and tighten
it with the enclosed wrench.
~Sc r ew in the 1x planapochromatic otJjective with the ring nut in clockwise
directi on on the side with the 2Alien screws.
• The fine-pitch thread on the ring nut consists of 24 threads.
You should expect at least 40 turns.
The ad justable ring nu t must never be set higher than the top su rf ace of the
nosepiece plate to prevent the nosepiece from locking while
ro tating
leica M Stereomicroscopes - Ass emb lv
Assembling
2x planapochromatic
Assembling
objective nosepiece
Adjusting parfocal
~ Carefully turn and ti gh t en the 2x planapoch ro matic objective clockwi se to
the limit stop
without applying excessive force.
~ Raise the focusing drive with the drive heads to
provide sufficient space for the 2x planapoch
ro -
matic objective.
~F it the objective nosepiece like a microscope car-
rier
wit hthe Alien screw (see page 34 , position 1 ).
~ Insertthe optics carrier in the objecti ve nosepiece.
~ Retighten the clamping screw
~Att ach the limit stop to the column of the st and so
thatthe working distance beneath the 2x objective
will always measure approx. 15 mm.
I
1i
• Fit and adjust the l x and 2x planapochromatic objectives as described.
The image then remains parfocal in the range of < 0. 05 mm, and refocusing
after changing the otJjective
is no longer requir ed .
• Use a very fine, flat otJject (e . g. an object micrometer) for the adjustment,
which allows maximum focusing even at highest resolution.
~Scr ew the 2x planapochromatic objective into the beam path.
~Ad justing the diopter settings and parfocality (seep. 20) .
~Screw the 1x planapochromatic objective into the
beam path.
~ Observe the same object with smallest magnifica-
tion without changing the settings made with the
2x planapochromatic objective.
~Turn the 1x planapochromatic ob jective counter-
clockwise until the object can be seen in focus
atthe smallest magnification.
~Sl owly zoom to the highest magnification. At
the same time correctthe focus
by turni ng the
1x planapochromatic objective.
• Verify thatthe object is in focus at highest magnification with t he
2x planapochromatic as well as the l x planapochromatic objecti ve
without re focusing. Otherwise turn the objective at the ri ng nut until
the object is focused.
~F asten the ring nutwith both screws.
Do not overtight en both screws.
le ica M St e reom i croscop es- Asse n t> ly
37

Illnrninators
Starting up
38
Transformers
Follow the safety instructions given on page 7.
Leica transformers may only be opened by authorized service
personne l, and the power cable must be disconnected before-
hand. The transformers are not to be used outdoors.
Regulating transformer
The regu l ating transformer 0-7 V/40 VA is used to operate the
6
V/10 Wand 6 V/20 W lamps.
1 Voltage selector
2 Connections for two lamps {maximum comb i ned
loading 40 W)
3 Connection for power cable
4 Fuse holder F1.0 A
5 Power switch
I on
0 off
6
ON display: Instrument is switched on.
7 Regulating knob
8 6Vdisplay: The maximum voltage has been reached.
~Set the available voltage
on the voltage se l ector.
-Position 115for 100 - 120 V
-Position
230 for 200-240 V
11>- Connect the power cable to the socket of the base and to
the power source.
11>- Conne ct the l amp . The sockets accept two lamps with
a
maximum comb i ned loading of 40 W.
Leica M Stereomicroscopes -I ll um i nat i ons
Switching
on and off
You can prolong the life of your bulb if you :
~ First switch off the lamp by turning the
rotary knob into the black range
~ and only then switch the transformer
on or off.
~Turn on the power switch.
The diode is il l uminated.
~ Use the rotary knob to adjust t he
brightness.
Above 6V the diode is illumi nated.
Changing fuses Fuses 1.0A, 5x 20 {stock no. 167 651)
~ Lamp off.
~ Power switch off.
~Turn the fuse holder counterclockwise
and extract it.
~ Fit anew fuse and replace the fuse
holder.
In the event of ~ Lamp off.
overload ~ Power switch off.
~Wait afew seconds.
~ Power switch on.
~Lamp on .
Step transformer
Follow the safety instructions given on page 7.
• You can attach a6 V/1 0W l amp to the step transformer.
~Set the voltage selector on the r ea r
side
to 115 V or 230 V.
~Attach the power cable to the power
supply.
~Con n e c t the lamp.
~Adjust thebright ness with the three-
st
ep switch {4/5/6 V).
Le1ca M Stereomicroscopes - Ill um inations
39