33
3.4.4. Observationtubus
Observation head inclined at 45°, interpupillary distance: 48mm - 75mm.
The binocular observation head can be rotated 360°.
A
2
33
Two fields of view merge
1
Illustration 015: NIB610/NIB620 - Adjusting the interpupillary distance.
1. Adjusting the interpupillary distance
(distance between the eyepieces)
Look through the eyepieces (1) and adjust the
interpupillary distance (2) so that the left and
right fields of view are completely aligned.
The device can be adjusted to the interpu-
pillary distance of the respective observer
between 48mm and 75mm.
The small white dots (3) indicate the interpu-
pillary distance on the scale.
Proper interpupillary distance is cru-
cial to the comfort of the user. Note
your interpupillary distance so that it
can be quickly duplicated.
B
1
4
Illustration 016: NIB610/NIB620 - Diopter adjustment.
2. Diopter adjustment
Look through one of the eyepiece (1) and
focus the image (eyepiece freely selectable).
Then look through the other eyepiece with the
other eye and turn only the diopter adjustment
ring (4) on this eyepiece to focus the sample.
The diopter compensation is an ad-
justment possibility on both eyepiec-
es and serves to compensate for near
- or farsightedness (max. +/-8 dpt.
difference between both eyes can
be compensated). If the difference is
higher, or if you suffer from astigma-
tism etc. we recommend observing
with your prescribed glasses on.
C
Illustration 017: NIB610/NIB620 - Eyepieces with rubber cups.
Diopter compensation is possible
on both eyepieces but is only per-
formed on one eye if the difference is
+/- 4 dpt. or lower.
3. Protection through rubber cups
Both eyepieces are suitable for spectacle
wearers. They are protected with rubber
cups (5) so that the user's eyeglasses are
not damaged when accidentally coming in
contact with the eyepiece.
5
NIB610/NIB620
3
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