Leica DM750 P, User Manual

Page: 31 / 45

Leica DM750 P User Manual Get Set! 31
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 cross-
hair) 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