Nikon Eclipse E400 POL Manual de instrucciones - Página 34
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Problem
Cause
'Countermeasure
be seen.
Vignetting or uneven
brightness in the view field;
the entire view field cannot
The optical path selection lever on the
trinocular eyepiece tube is in an
intermediate position.
The optical path selection lever on the
trinocular eyepiece tube is not set to 100%
of the binocular eyepiece.
Set the optical path selection lever to
100% of the binocular eyepiece.
(p.16)
The revolving nosepiece has not been
rotated until it has clicked into place.
(The objective is not in the optical path.)
Turn the revolving nosepiece until it
clicks into place.
(Place the objective in
the optical path.)
(p.12)
The condenser is too low.
The Bertrand lens is in the optical path.
Move out of the optical path.
The top lens of the swing-out condenser
is not positioned properly.
Correctly push in all the way.
The P-CL, P-CS or P-CQ plate is not
inserted correctly.
Position correctly.
field.
Dirt or dust in the view
The condenser is too low.
Position the condenser so that the image
of the field diaphragm forms properly
condenser, eyepiece, filter or specimen.
34