- Frank`s Hospital Workshop
OLYMPUS ZOOM STEREO MICROSCOPE
INSTRUCTION MANUAL
SZ
MODEL
OLYMPUS STEREOSCOPIC ZOOM MICROSCOPE
MODEL 5Z-IIl
The Model SZ-III is an advanced version of the Model SZ, a revolut-
ionary product which adopted the zoom magnification mechanism for the
first time in the world in a stereoscopic microscope, thus rapidly expanding
its range of utilization such as in the classification of plants, anatomy
of animals, or in assembly and inspection of modern electronic products
and precision instruments.
The image stays in focus through the entire magnification range and
any desired magnification can be obtained within the zoom ratio of 5.7.
Further, there is no “image fade away” when changing magnifications as
is the case with conventional stereo microscopes. Doubtlessly this will
greatly increase working efficiency.
The Model SZ-III is completely equipped with accessories assuring its
optimum utilization.
SPECIFICATIONS:
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Continuously Variable Magnifications: Zoom ratio 5.7
Total Magnifications: (with 1X objective) With eyepieces G10x: 7x—40x
With eyepieces G20x: 14 Xx —80x
Inclined Binocular Head: Inclination 45°
Angle of visual axes 12°
Range of Interpupillary Distance Adjustment:
With eyepieces G10X at exit-pupil: 53~79 mm.
Range of Ocular Tube Movement: By head rotation through 360°
Wide Field Eyepieces: G10x paired
Free Working Distance:
1 x Objective: 86 mm
0.5% Objective: 159 mm
0.75% Objective: 105 mm
1.5% Objective: 45 тт
2x Objective: 30mm
Body Movement (Vertical): 102mm
By Rack & Pinion: 55 mm
By Pillar: 47 mm
Range of Body Rotation: 75° pivoted at the pillar
Stage Plates: Clear, and Black-and-White Plates
NAME OF PART:
Body Support Bracket
Head Clamp Screw
Focusing Knob
Body Clamping Screw
Pillar Clamp Lever
Pillar
Stage Clip
L
Stage
STANDARD SET:
Eyepiece
Prism Housing
Zoom Control Ring
Magnification Indicator
Ring
Threaded Hole for
Epi-llluminator
Body Mounting Ring
r=
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Objective Shroud
Stage Plate
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—
Stage Plate Clamping
Screw
Microscope: Body, Binocular Head, 1X Objective 1 set
Stand: Stage, Pillar 1 set
Eyepieces: Gl0x 1 pair
Stage Clips: Large 1 pair
Stage Plates: Clear, and Black-and-White Plates 1 each
Eyepieces caps, Eye-shades, Cabinet, Plastic Cover, and Guarantee Card.
Stage plate
OPTICAL SYSTEM:
The objective, ocular and varifocal lens systems are arranged as shown above.
The beams from the specimen enter the Objective “Ob” at an angle of visual axes
of 12°, wherein they are turned parallel to each other. They further proceed through
the zoom system “ZL, and ZL,” and the fixed lenses “L,”, reaching the Prism
“P,” where they again assume a 12° angle of visual axes and 45° inclination. Then
the beams enter porro-prisms “P.” and finally reach the eyepieces “Oc”. Continuous
Zooming variation is performed by vertical displacement of the ZL lenses.
LENS CHARACTERISTICS:
The total magnification may be obtained by the following formula:
Total Mag. =(Eyepiece Mag.) x (Objective Mag.) x (Magnification Indicator Value)
Using Objective 1x : (Built-in)
Mag. Indicator View Field Ww Distance
Value Total Mag. mm mm
X
—
en
x
Eyepiece 1.5
10X
x
X
X
x
3 | == || %|/ ® | ® | <
Eyepiece
20x
wn
E
хх 1х 1х ххх
* | | = | = | © | ® | =
Using Objective 0.5 :
Mag. Indicator Total Mag. View Field Ww Distance
alli mim mim
Eyepiece
10 x
XIX XA
Eyepiece
20 x
XX SCI XX XX
Total Mag.
x
x
x
x
x
X
x
Eyepiece
10 х
Eyepiece
20%
Using Objectve 1.5% :
Mag. Indicator Total Ma View Field Working Distance
Value В. min mm
x
Eyepiece
10x
Eyepiece
20 x
Using Objective 2x :
Mag. Indicator View Field Working Distance
Value Total Mag. mm Te
Eyepiece
10x
Eyepiece
20 x
ZOOM LENS SYSTEM:
This system is composed of 2 sets of lenses placed and operated parallel, each
set consisting of 2 groups of varifocal lenses. The change of magnifications is per-
formed by zooming these groups of lenses and changing the focal length of the
objective. In case of magnification change from a low number to a higher one, the
lower lens group (lst lens group) rises to the middle and then comes down. The
upper lens group (2nd lens group) is lowered straight down. The magnification
ratio for the zoom system is 5.7. With the use of an objective 1x, it varies from
0.7X 10 4х,
EYEPIECES:
Eyepiece Characteristics:
Magnification
Focal Length
Field of View (Diameter of the
View Field of an Eyepiece)
| G6 10 x
25 mm
22 mm
| G 20 x
12.5 mm
12.2 mm
OBJECTIVES:
Special objectives have been designed for the exclusive use with the Model
SZ-III. The standard set includes a 1X objective. This 1X objective is built in the
microscope body and cannot be removed. 0.5x, 0.75x, 1.5X and 2X objectives are
also available as special accessories. They are in threaded mounts and are screwed
into a corresponding thread on the bottom of the objective shroud.
Objective Characteristics:
Magnification Focal Length Working Distance
1 X 105mm 86 mm
0.5 x 210mm 159 mm
0. 75 x 140 mm 105mm
Вох 70mm 45 mm
2.0 X 52mm 30 mm
BODY :
This is the main part of the microscope including the built-in objective and the
zoom variation mechanism, and is attached to the pillar with a mounting bracket.
When the zoom control ring is turned, the zoom movement of vari-focal lenses
provide a continuous change of magnification. The scale on the magnification indi-
cator ring shows that its rotation by one graduation results in a change of total
magnification by 0.1x. The body can be rotated through 360° within the body
mounting ring, thus enabling the user to freely choose whatever position he desires.
HEAD:
The head is designed with an inclination of 45° to the horizontal and a 12°
angle of visual axes to allow the user to maintain a comfortable posture and avoid
fatigue during prolonged observation. This also facilitates smooth coincidence of the
two images (right and left) into one. The range of interpupillary distance adjust-
ment, using eyepieces G10x, is 53-79 mm. Therefore, you can adjust it to your own
convenience by turning the eyepiece tubes. Eye-refraction difference will be adjusted
by focusing correctly on the specimen through the right eyepiece and then turning
the diopter ring to focus the left eyepiece,
Interpupillary Distance NO ,
Adjustment
Diopter Ring
FOCUSING MECHANISM:
Focusing is performed by: (1) Sliding the body on the pillar until rough focus
is attained and (2) making fine adjustment with the focusing knob. The range of
movement with the focusing knob is 55 mm.
STAND:
The stand is composed of a stage and a pillar. The stage is designed to assure
complete stability of the body mounted at the top of the pillar in whatever position
it may be. The stage plate is mounted in the circular receptacle of the stage. The
stage plates are interchangeable according to the method of observation employed.
Whichever plate (clear or black-and-white) may be used, it must be firmly clamped to
the stage with the clamping screw. The pillar holds the microscope body and moves
47mm vertically against the stage and rotates through 75°. The inner tube of the
pillar, assisted by a built-in balancing spring, firmly holds the body and the body
support bracket and slides up and down in the outer tube, and can be set at a
desired position with the pillar clamping screw.
ASSEMBLY AND OBSERVATION:
Remove the microscope components from the cabinet and assemble in the fol-
lowing order:
Order of Assembly:
l. Place the focusing portion onto the body support bracket and secure it
tightly with the body clamping screw.
2, Insert the microscope portion into the head clamping ring from above, rotate
the head to suit your preference and clamp it with the head clamping screw.
3. Place a stage plate into the receptacle and clamp it with the clamping screw.
Insert the stage clips.
5. Remove the eyepiece caps from the binocular tube and place eyepieces into
appropriate position. There are two methods of observations—with reflected
light and with transmitted light. In case of the latter, a special accessory
(the base and the illuminating equipment) will be used.
Selection of Stage Plates
According to the type of the observation, the proper stage plate must be
used—the clear glass for transmitted light observation and the black-and-white
glass for reflected light.
PARFOCALITY ADJUSTMENTS:
The Olympus Model SZ-III is designed to be parfocal in both right and left
eyepieces at all magnifications at the standard distance of vision (250 mm). However,
each person has a different distance of vision from the other. To obtain satisfactory
parfocality with the Model SZ-III, follow the procedures described below when
focusing on the specimen.
(1)
(2)
(3)
(4)
(5)
(6)
(7)
Set both (right and left) diopter rings at “O”,
Rotate the zoom control ring to position “4”.
Focus the image by means of the focusing knob.
Rotate the zoom control ring to position “0,7”.
If the image is out of focus, perform focusing by adjusting the diopter ring(s)
right or left, or both, as required.
DO NOT perform focus adjustment with the focusing knob.
Once again rotate the zoom control ring to position “4”,
If the image is still out of focus, adjust the focusing knob to bring the
image in focus.
DO NOT perform focus adjustment with the diopter ring(s).
Now your Model SZ-III has been adjusted to be parfocal at your own
distance of vision. Hence, re-adjustment of focus when vou switch from one
magnification to the other is not necessary.
OPTIONAL ACCESSORIES
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Auxiliary objectives 05x, 0.75%, 1.5X, and 2.0X
Eyepieces G20 x paired
Epi-illuminator LSG-II with TF transformer
Iluminator LSD with TE transformer
Trans-illuminator base
Fluorescent illuminator VL-FL
Universal stand VS-IV
Pillar extension for conversion objective 0.5X
Iris diaphragm
PRINTED IN JAPAN 8110510
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