54
8. Operation
Fig. 62
BDT25+ tube with digital camera
1
Control bar
1
Adjusting the viewing angle
• For the AET22 and EDT22 ergo tubes, the
viewing angle can be adjusted by tilting the
binocular eyepiece in the range of 5
°
– 32
°
(Fig. 61).
Adjusting the eyepiece extension to the arm
length
• On the AET22 tube, the eyepieces can be ex-
tended up to 30 mm (Fig. 61).
Beamsplitting in photo tubes
EDT22 tube:
The light division between the observation and
documentation ports has a definite presetting
(50:50).
Fig. 61
Individual settings of the AET22 tube
BDT25+ tube:
The light division is set manually by pulling out a
control bar.
Control Bar
Observation
Photo
VIS
100 %
0 %
50/50
150 %
50 %
PHOTO
110 %
100 %
tube:
This tube is similar to the documentation tube
BDT25+, but it is motorized.
The control positions are selected using a vari-
able function key on the stand.
HC L 2TU tube:
The light division is set manually by pulling out a
control bar.
Control Bar
Observation
Photo
VIS
100 %
0 %
PHOTO
110 %
100 %
