Optika Italy IM-3F Manuel D'instructions page 14

VIEWING TUBE
Dioptric adjustment
1. Look into the right eyepiece with your right
eye only, and focus on the specimen.
2. Look into the left eyepiece with your left
eye only. If the image is not sharp, use
the dioptric adjustment ring ① to compen-
sate. (Fig.33)
► The adjustment range is ±5 diopter.
The number indicated on the adjust-
ment ring graduation should corre-
spond to the operator's dioptric cor-
rection.
Adjusting the interpupillary distance
Observing with both eyes, hold the two eye-
piece prism assemblies. Rotate them around
their common axis until the fields of view co-
incide.
► The graduation on the interpupillary
distance indicator ②, pointed by the
spot "." on the eyepiece holder, shows
the distance between the operator's
eyes. (Fig.34)
The range of the interpupillary distance is 48-
75mm.
Selecting the light path
Pull the light path selector lever
using your thumb, selecting the light path you
need. (Fig.35)
LIGHT PATH SELECTOR
LEVER
In
Out
All manuals and user guides at all-guides.com
②
③
sideways
③
BRIGHTNESS
20% used for binocular observation, and
80% used for video or photography
100% used for binocular
observation
Page 14
①
APPLICATION
Binocular observation, television, and
micrography or video can be operated
simultaneously
Binocular
observation
Fig.33
Fig.34
Fig.35