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7. Startup
7.3 The display
(Leica DM4000 B/
DM4000 M/DM4500 P)
The screen displays the microscope’s current
settings. The content of the display depends on
the features of the individual microscope. In the
first column, corresponding symbols indicate
the type of information: contrast method, magni-
fication, light intensity, diaphragms, light split-
ting for photo tubes.
Please see the abbreviation index for a list of
abbreviations used, →
p. 36f.
Contrast method
In the first row, you find an indication of the ac-
tive light axis (incident light or transmitted light)
of the current contrast method and, if used, the
current filter cube.
The shutter status display for the transmitted
light or incident light shutter:
Transmitted light shutter is open
Transmitted light shutter closed
Incident light shutter is open
(for fluorescence only)
Incident light shutter is closed
(for fluorescence only)
Magnification
The current objective magnification (OBJ),
sometimes followed by the re-magnification of
the magnification changer*, appears along with
the total magnification:
Σ = Objective x re-magnification x eyepiece
↑
Light intensity
The current brightness setting is graphically de-
picted by a beam. In addition, the light intensity
is specified in 20 (coarse) or 255 (fine) incre-
ments →
p. 59.
Diaphragm
The values for the field diaphragm (FD) and the
aperture diaphragm (AP) are indicated numeri-
cally. The field diaphragm in the incident light
may be either round or rectangular. Accordingly,
the FD designation is set in parentheses or in
brackets: (FD) or [FD].
Note:
When using a digital camera, angular field dia-
phragms are recommended.
Light distribution
If a motorized tube is present, the light division
between ocular (Eye) and photo port (Docu) is
indicated in %.
Note:
The display may flash after the initialization
phase or even during microscopy. This always
occurs when the contrast method selected can
not be performed with the microscopic settings.
For example, an objective may be rotated in that
is not suited to the contrast method chosen.
Then check your settings.
↓
↓
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