Leica DM R Serie Mode D'emploi page 31

Objektive prisms* for interference contrast
ICT/ICR
The prisms are already fitted into the turret at
the factory in various configurations. If you
should want to change the prisms yourself:
make sure to push the prism mount against the
guide pin (24.2) and do not screw the fixing
screws too tightly (use washers!) to avoid
strain. The code letters, e.g. A, must be visible,
cf p. 48 and 86. Stick on adhesive label (24.3)
corresponding to lettering of opposite positions,
e.g. A.
Fig. 25 Conversion of objective nosepiece
1 Stop pins in objective nosepiece, 2 IC prism turret with 2
fixing screws, 3 Cover plate
1 2
3
The turret is assembled in its mount to the
objective nosepiece as follows*: Unscrew the
two fixing screws (25.2 and 25.3) on the
underneath of the nosepiece with the 3 mm
hexagonal screwdriver, remove the cover plate
(25.3), put the IC turret in position and press hard
against the two stops (25.1). Fix in position with
the two longer screws. It is practical to take
interchangeable nosepieces off the microscope
for this conversion.
*
When the IC device is ordered as a complete outfit, these
components are generally assembled at the factory
Fig. 26 Objective centering nosepiece*:
Screws for tube slit/IC objective prism turret changeover. The
other screws must not be loosened under any circumstances.
.
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