DESCRIPTION OF THE INSTRUMENT
Axio Lab.A1
Control and functional elements on optional components
Carl Zeiss
04/2013 430037-7144-001
37
2.5
Control and functional elements
on optional components
2.5.1
Tubes/photo tubes
The appropriate adapters for reflex cameras,
microscope cameras and video cameras may be
plugged into the camera port (Fig.
2-7/
1
or
Fig. 2-8/
1
) of the binocular photo tubes.
Binocular photo tube 30°/20 with fixed
graduation 50:50
50% of the light is directed to the eyepieces and
camera port respectively (Fig. 2-7).
Binocular photo tube 30°/23 (100:0/0:100)
The light can be directed using a shift knob to
either the eyepieces or the mounted camera.
Shift knob (Fig. 2-8/
2
) to front (eye symbol):
100 % light to eyepieces.
Shift knob (Fig. 2-8/
2
) to the rear (camera
symbol):
100 % light to camera
Push-pull rod (Fig. 2-8/
3
) pushed in:
Eyepiece shutter closed.
Pull-push rod (Fig. 2-8/
3
) pulled out:
Eyepiece shutter opened.
Particularly for camera shots with extended
exposure times it is recommended that
possible residual light incidence through the
eyepiece is prevented either by means of a
tube shutter or eyepiece cover (included in
dustguard set). If neither is available, remove
the eyepiece and insert the supplied dust cap
onto the eyepiece socket!
Fig. 2-7
Binocular photo tube 30°/20 with
fixed graduation 50:50
Fig. 2-8
Binocular photo tube 30°/23 with
toggle graduation 100:0/0:100
