Leica M80 - Dioptric Correction and Parfocality; Parfocal Adjustment for Magnification Changes

Leica M-series User Manual 40
Adjusting
1. Set the dioptric correction for both
eyepieces to "0".
2. Select the lowest magnication and focus
on a at specimen.
3. Select the highest magnication and read-
just the sharpness.
4. Select the lowest magnication 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).
Leica stereomicroscopes are parfocally matched.
The prerequisite for this is the correct setting of
the diopters and the parfocality. The following
adjustments only have to be carried out once
by each user.
Preparation
★ Move the lever of the video/phototube to
the "observation" position and open the
diaphragm.
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 magnication and refo-
cus if necessary.
Now, if you adjust the magnication from the
lowest to the highest level, the specimen is
always brought into sharp focus. If not, repeat
the process.
Dioptric Correction and Parfocality