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Operating
Diopter adjustment
and setting
parfocality
Preparations
Bring the test
object into focus
If you adjust the diopters at the adjustable eyepiece as
described below, the focus will remain constant, or par-
focal, from minimum to maximum magnification. In other
words, you will not have to refocus when you change
magnification, but only when you want to examine a
higher- or lower-positioned object segment. Make full
use of this feature, which is not available on every stereo
microscope.
• Diopter adjustment is possible within a range
from +5 to –5.
Every user has to make the following adjustments
only once.
If you are using a graticule, the diopter adjustment and
parfocality setting procedure is slightly different to that
described here. Please refer to the section on measure-
ment in the graticule user manuals.
Setting up diopter with an adjustable and a fixed
eyepiece
̈ Set up illuminator.
̈ Set interpupillary distance (p.23).
̈ Set approximate working distance using the focusing
drive (see p.38–40 for the working distances of the
various objectives).
̈ Position a flat test object
beneath the objective.
̈ Set the microscope to
minimum magnification.
̈ Close the eye that is
looking into the adjustable
eyepiece and look into the
fixed eyepiece with the
other eye.
̈ View the test object and
bring into focus with the
focusing drive.
Leica StereoZoom User Manual