Leica DM R Serie Mode D'emploi page 69

Brightfield, Koehler illumination
Setting of UCE, UCR, UCPR condensers and the
field diap hragm (Köhler illumination)
Turn in a 10x objective or higher and focus the
specimen. Correct the upper stage stop for the E
focus (44.5) if necessary. The best position is
just above the set focal plane.
The items marked with an asterisk
are not part of every outfit.
Condensers, Field diaphragm
Close the field diaphragm (48.22).
Slightly narrow the aperture diaphragm (48.21).
Swing in the condenser top (48.15).
Turn the condenser stop screw (48.13) clockwise
and move the condenser to the top position with
the height adjustment (48.12). Switch the disc
(48.14) to the H position (= brightfield). The disc
is not necessary for brightfield.
Fig. 48*
1* Lamphousing 106 z for reflected light, 2* Analyser,
3* Rotatable reflector turret, 4* Window for incident light
lamp adjustment, 5* Clamp screw for nosepiece change,
6* ∞ Turret for objective side Wollaston prisms, 7* Knurled
knob for adjusting the object holder, 8 Stage rotation clamp,
9* Stage clamp, 10 Centering keys for condenser disc,
11 Fixing screw for condenser holder, 12 Condenser height
adjustment, 13 Adjustable upper stop of condenser,
14 Condenser disc, 15 Lever for condenser top, 16 Condenser
centering screws (hidden, cf 27.1 and 27.5), 17, 18 Centering
screws for lamp holder, 19 Collector adjustment, 20 Focusing,
21 Aperture diaphragm, 22 Field diaphragm, 23 Grey (neutral
density) filter, 24 Illumination intensity control (12 V 100 W
lamp), 25* IC/P polarizer
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9
10
11
12
13
17
18
19
20 21 22 23 24 25
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3
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8
14
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