User manual Leica EZ5
1
Setting diopters and
parfocality
If you set the diopters on the adjustable eyepiece exactly as
described, the image will remain equally sharp from the lowest to
the highest magnification . This is referred to as parfocality, and it
means that you do not have to adjust the focus when the magni-
fication is changed . You will only have to focus again when you
want to view an object site at a higher or lower location . Use this
advantage as often possible, it is not available on all stereomicro-
scopes .
• Diopters can be adjusted from +5 to –5 .
Each user needs to make these settings only once .
When a graticule is used, diopters and parfocality are adjusted
slightly differently, and this procedure is described in the operat-
ing instructions for the graticules (Measuring) .
Set the diopter with an adjustable and a fixed eyepiece
Preparatory work
▶
Set up the illumination system
▶
Adjust the interpupillary distance (page 18) .
▶
Use the focusing drive to set the working distance approxi-
mately (the working distances of the various objectives are
listed on page 30) .
Focusing a test
object
▶
Place a flat test object under the
objective .
▶
Set the lowest magnification .
▶
Close the eye over the adjustable
eyepiece and look into the fixed
eyepiece with the other eye .
▶
View the test object and use the
focusing drive to bring it into focus .
Operation
Summary of Contents for EZ5
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