Dioptric Correction And Parfocality - Leica M125 B User Manual

Dioptric Correction and Parfocality

Leica stereomicroscopes are
matched. The prerequisite for this is the correct
setting of the diopters and the parfocality. The
following adjustments have to be carried out
only once by each user.
Preparations
Move the lever of the video/phototube to
★
the "observation" position and open the
diaphragm.
Leica M series
parfocally Adjusting
1. Set the dioptric correction for both
eyepieces to "0".
2. Select the lowest magnification and focus
on a flat specimen.
3. Select the highest magnification and read-
just the sharpness.
4. Select the lowest magnification again, but
do not look into the eyepieces.
6. Rotate the eyepieces counterclockwise in
the "+" direction as far as they will go (+5
diopter settings).
User Manual
7. Look into the eyepieces.
8. Slowly rotate each eyepiece individually
in the "–" direction until each eye sees the
object sharply imaged.
9. Select the highest magnification and refo-
cus if necessary.
Now, if you adjust the magnification from the
lowest to the highest level, the specimen is
always brought into sharp focus. If not, repeat
the process.
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