Leica dm750 User Manual download pdf (Page 30)

Leica DM750 P Manual 30

Adjust the eyetubes for your interpupillary

distance.

1. Fold or unfold the eyetubes until you see

one illuminated circle.



The viewing tubes maintain a constant

tube length for all interpupillary settings.

This means that a change of interpupillary

distance does not aﬀect parfocality, magniﬁca-

tion, or calibrations that depend on magniﬁca-

tion.

•

To correctly set the eyepieces, be sure

the crosshair eyepiece is seated securely

in the slot of the right eyetube.

2. Focus the crosshair reticle by gripping the

knurl and rotating the top of the eyepiece

until the reticle is in clear focus.

3. While looking through only the crosshair

eyepiece, bring the specimen into focus

with the ﬁne focus of the microscope.



It may help to cover your left eye.

4. Now switch to look only through the

other eyepiece (focusing eyepiece without

crosshair) with the other eye.

•

This time, focus the specimen by using

the focusing capability in the focusing

eyepiece. Do not raise or lower the stage to

focus!

5. Grip the knurl on the focusing eyepiece

with one hand and rotate the top of the

eyepiece with the other hand until the

specimen is in focus with this eye and this

focusing eyepiece. This corrects for any

vision diﬀerences between your right eye

and left eye.

6. Now switch to a high magniﬁcation objec-

tive (not an oil objective) and focus the

microscope while viewing with both eyes.



The higher magniﬁcations have a shal-

lower depth of ﬁeld. Therefore, after

focusing with a high magniﬁcation, you will

ﬁnd that when you change to a lower magni-

ﬁcation, you only have to adjust the ﬁne focus

slightly, if at all.

Viewing Tube Adjustment

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