Leica DM2700 M, Instructions Manual

Page: 62 / 156

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9. Contrast Methods
For polarizer ICT/P*:
Turn the polarizer on the underside of the con-
denser in the light path. Make sure that the
red index point on the front of the polarizer is
aligned with 0.
• Insert the objective prism slide into the tube
slot (Fig. 64). The identifying letter (such as D)
must match that of the objective engraving
(top line). The number after the code letter only
specifi es one variant, e.g. D1 = also applies for
pupil position D.
• Select the condenser-side prism correspond-
ing to the magnifi cation of the used objective,
e.g. pos. 20/40 for 20x and 40x objectives.
• For fi ne adjustment use the knurled wheel
(64.1) at the objective prism slide.
• The contrast can be optimized further with the
aperture diaphragm or a
λ
/4 compensator.
Fig. 64 Objective prism slide
1 Fine adjustment
1