Leica StereoZoom User Manual – Special notes 31
Set lowest magnification.
Do not look into the eyepiece!
Turn lens counterclockwise in
the ‘+’ direction until it stops.
Now look into the eyepiece.
Close one eye.
With the other eye, observe
the test object and turn the
lens slowly clockwise in the ‘–’
direction, until this eye sees
the object clearly.
Set the diopter for the other
eye in the same way.
Select highest magnification.
View object and, if necessary,
gently refocus.
Adjust magnification changer
from the lowest to the highest
magnification.
When doing this, the sharp-
ness must remain constant
over the entire zoom range
(parfocal). Otherwise,
please repeat the procedure.
Regulating diopters
Testing
parfocality
31