6 Troubleshooting
2 Operational
E-43
Eyes get tired during observations.
Causes Corrective Measures
Interpupillary adjustment has not been
performed.
Perform interpupillary adjustment.
(P.14)
Diopter adjustment has not been
performed.
Perform diopter adjustment. (P.15)
Brightness is inadequate.
Turn the brightness adjuster to attain a
suitable brightness. (P.14)
Loses focus over time.
Causes Corrective Measures
Torque of coarse focus knob is too loose.
Turn coarse torque adjustment ring to
tighten torque so the revolving
nosepiece does not fall on its own
weight. (P.25)