OPERATION
Axio Observer Operating and function controls - description ZEISS
12/2016 431004-7244-001 87
Manual condensers (Fig. 64/3), (Fig. 65 and
(Fig. 66)
Depending on the version, condensers (Fig. 65/1)
are equipped with the following:
− 6-position turret disk for:
bright field: H
phase contrast: Ph0, Ph1, Ph2, Ph3 with
centerable stops
interference contrast: DIC
PlasDIC: with 3.5 mm slit aperture for PlasDIC
− The aperture diaphragm (iris diaphragm) is
opened and closed using the knurled knob
(Fig. 65/2)
− Rotate the turret wheel (Fig. 65/3) to swivel the
brightfield insert or contrast stops into the
optical path
− The short designation for the turret position
(e.g. H) is displayed on the front of the turret,
facing the user.
− The condensers 0.35 and 0.55 for phase
contrast require the use of one 1.5 mm Allen
screwdriver each (plugged in at Fig. 66/1) to
center the phase stops
The condenser turrets feature a so-
called automatic diaphragm mechanism.
The aperture diaphragm (iris diaphragm)
is opened fully when a phase stop turret
position is selected. The aperture
diaphragm opening is automatically
reset to the previous setting when
another turret position is selected.
When using the iHMC condenser (424241-9010-000) observe the separate operating manual
(424241-9010-701).
Fig. 65 LD condenser 0.55 H, Ph1, Ph2, Ph3,
DIC; 6 positions
Fig. 66 LD condenser 0.35, 6-position,
H, Ph0, Ph1, Ph2, DIC, DIC
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