2. Operational
Symptoms
Causes
Actions
High magnification
objectives touch the
sample when
• Eyepiece diopter not correctly adjusted.
Adjust eyepiece diopter
switched from low
correctly. (P. 15)
magnification
objectives.
Parfocality
decreases when
• Eyepiece diopter not correctly adjusted.
Adjust eyepiece diopter
switched to other
correctly. (P. 15)
objectives.
Image movement
not smooth when
• Top of objective in contact with stage ring.
Change sample and
the sample is
stage position.
moved.
Binocular images
• lnterpulillary distance not correctly adjusted.
Adjust it correctly.
not coincidnet.
(P. 17)
Excessive eye
• Diopter difference not correctly adjusted.
Adjust it correctly.
(P. 15)
fatigue during
observation.
• Brightness not optimal.
Use ND filters or change
lamp voltage.
65