Tubes; Port Selection - Leica DMI3000B Mode D'emploi

8. Operation

8.6 Tubes

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 viewing angle
• Ergotubes feature a tilting binocular section
for a 30–45° viewing angle adjustment range.
Beam splitting in photo tubes
The beam splitting is set manually by pulling out
a control bar.
Observation
100%
0%
alternatively 50%
BL activation of Bertrand lens*
Light distribution via
manual control bar
96

8.7 Port selection

Leica DMI 3000 B and Leica DMI4000 B:
Manual shifter rod activates and deactivates
the left-hand photo port.
VIS
alternatively:
Leica DMI 6000 B:
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.
photo
0%
100%
50%
LEFT
100%
20%
0%
∅ ∅ ∅ ∅ ∅
♦ ♦ ♦ ♦ ♦ ∅ ∅ ∅ ∅ ∅
Fig. 115 Tube
0%
80%
100%
setting