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4. Engage the highest magnification position.
5. Optimize the focus using the focusing drive.
6. Engage the lowest magnification
position.
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 object sharply
imaged.
9. Engage the highest magnification
position.
10. Refocus if necessary.
11. Slowly move the magnification
changer from the lowest magnification
to the highest.
• The image sharpness must remain
constant (parfocal). Otherwise,
repeat the procedure.
C Adjusting
dioptric settings
D Inspecting
parfocality
21
Leica M Stereomicroscopes – Operation