84
8. Operation
Note:
Close any unused tube openings, as otherwise
stray light can interfere with observation.
Adjusting the Viewing Distance
• Adjust the viewing distance of the eyepieces
so that a congruent total image is seen
(Fig. 115).
Adjusting the Vviewing Angle
• Ergotubes feature a tilting binocular section
for a 10
°
-45
°
viewing angle adjustment range.
Beam Splitting in Photo Tubes
The beam splitting is set manually by pulling out
a control bar.
Button
Observation
Photo
VIS
100 %
0 %
50/50
50 %
50 %
BL
activation of Bertrand lens*
Light distribution via
Manual control bar.
Selecting Ports
The
button on the front control panel switches 100%
of the light to the eyepieces.
Use the
button, also on the front control panel, to select
the side ports.
Depending on the configuration, the screen will
now display
- The active port (right or left) and
- The percentage of light going to the port
(100%, 80%, 50%).
Optional:
The bottom port selection function can be as-
signed to one of the variable function buttons on
the stand or the SmartMove.
The top port can only be selected manually.
Select ports via
Fixed function buttons on stand (side
ports)
Variable function buttons on stand and
SmartMove (bottom port)
Manual action (top port).
8.7 Eyepieces
Fig. 115
Tube setting
∩
→
→
