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Adjust the magnification by rotating the knurled
ring (12.1).
You can read the zoom positions (magnification
factor) from the scale (12.2).
You can activate and deactivate the zoom click
stop by pressing the button (12.3).
3.3 Iris diaphragm
The iris diaphragm is for continuous adjustment
of the depth of field without changing the magnifi-
cation. You can reduce the aperture diameter to
enlarge the depth of field. The size of the light
cone is also reduced, and the brightness of the
image decreases.
The clamping screw (12.5) is for adjusting and
locking the iris diaphragm: 1 = smallest diameter,
5 = OPEN.
3.4 Fine focusing
The fine focusing allows sensitive and precise
focusing in a range of 10mm. The fine focusing is
required for precise focusing at high magnifica-
tions, particularly when using microscope
objectives.
Adjust the sharpness by turning the knurled
ring (12.4).
Leica Z6 APO & Z16 APO – Operation
35
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