background image

9

Opening the field diaphragm too much 
results in stray light entering the field 
of view, generating flare and reducing 
the image contrast.
Be sure to adjust the field diaphragm 
each time you change the objective.

Adjust the field diaphragm

Adjust the field diaphragm

Turn the field diaphragm dial to adjust the field diaphragm so that 
it almost circumscribes the field of view.

16

13

View the specimen.

View the specimen.

Rotate the stage knob to move the target. If the target is not in focus, 
use the focus knob to adjust the focus.

17

14

Turn off the power.

Turn off the power.

Turn off the power switch (press to the "   " 
position) for the microscope. (The power 
LED on the front of the main body will turn off.)

18

15

10

11

Focus on the specimen.

Focus on the specimen.

12

(1)

(2)
(3)
(4)

(5)

(1)

(2)

(3)

(3)

(4)

POWER

0.1

0.2

0.3

0.4

0.6

0.7

0.8

0.9

TO

R

Q

U

E

CL

A

POWER

0

90

80

30

20

10

POWER

0.1

0.2

0.3

0.4

0.6

0.7

0.8

0.9

0.1

0.2

0.3

0.4

0.6

0.7

0.8

0.9

(Continuation)

(Continuation)

 Focus on the specimen. 

 Focus on the specimen. 

(

Š

See Chapter 2, Section 2 in the instruction manual for details)

See Chapter 2, Section 2 in the instruction manual for details)

When the focus was roughly adjusted using coarse focus knob, 
turn the fine focus knob to accurately adjust the focus.

Adjust the brightness of the field of view by turning 
the dia-illumination lamp brightness control knob.

Avoid the following actions, which can 
cause equipment malfunction.

Notes on controlling the focus knobs

Notes on controlling the focus knobs

Rotating the right and left focus 
knobs in opposite directions.
Turning the coarse focus knob past 
its limit point.

Adjust the diopter.

Adjust the diopter.

(

Š

See

See

 

Chapter 2, Section 4 in the instruction manual for details)

Chapter 2, Section 4 in the instruction manual for details)

Turn the diopter adjustment ring on the right and 
left eyepieces to align the end face of the diopter 
adjustment ring with the line. 
(This is the diopter adjustment reference position.)
Focus on the specimen using the 40x objective.
Bring the 10x (or 4x) objective into the optical path.
Look into the right eyepiece with your right eye and the left 
eyepiece with your left eye. Turn the diopter adjustment ring 
of each eyepiece to focus on the specimen. 
At this point no focus knobs are used.

Line

Repeat steps (2) through (4) to make sure the focus has been 
adjusted properly.

For easy adjustment, look into 
the eyepiece as if you were looking 
at a distant object.

Adjust the interpupillary distance.

Adjust the interpupillary distance.

Look into both eyepieces and rotate the binocular part to adjust 
the binocular part's opening until the fields of view for the right 
and left eyes coincide.

Focus and center the condenser. 

Focus and center the condenser. 

(

Š

See Chapter 2, Section 5 in the instruction manual for details)

See Chapter 2, Section 5 in the instruction manual for details)

Look into the eyepiece with the field diaphragm stopped down 
to the minimum. Focus on the field diaphragm image using 
the condenser focus knob, then adjust the condenser centering 
screws to center the diaphragm image within the field of view.

Bring the 40x objective into the optical path to check the focus 
and centering of the field diaphragm image. Make adjustments 
in the same way as step (1) as necessary.
Turn the field diaphragm dial and adjust the field diaphragm image
so that its size is almost the same as the field of view.

Select the desired objective.

Select the desired objective.

Press the nosepiece forward/reverse rotation buttons, or 
the nosepiece address button on the remote control pad to move 
the desired objective into the optical path.

Field diaphragm

Field of view

OFF

Be sure to adjust the aperture 
diaphragm each time you change 
the objective.
(You can see the aperture diaphragm 
image with the centering telescope.)

Adjust the aperture diaphragm.

Adjust the aperture diaphragm.

(

Š

See

See

 

Chapter

Chapter

 

2, Section 6 in the instruction manual for details)

2, Section 6 in the instruction manual for details)

Turn the aperture diaphragm lever on the condenser to adjust 
the aperture diaphragm so that it is set to 70 to 80% of 
the numerical aperture of the objective used.

Pupil of 

objective

Appropriate size of 

the aperture diaphragm

70 to 80

100

Aperture diaphragm 

image

Circumscribe around 

the field of view

Field diaphragm image

Eyepiece field of view

Field diaphragm image

Eyepiece field of view

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