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8. Operation
8.5 Focusing
Leica DMI3000 B and Leica DMI4000 B:
The left-hand focus wheels can be used for both
coarse and fine focusing; the right-hand focus
wheel for fine focusing only (a version of the
Leica DMI3000B with mirrored focus controls is
also available)
Leica DMI6000 B:
Note:
The parfocality teach-in has already been per-
formed at the factory. However, it may be neces-
sary to perform another teach-in after installing
the objectives when setting the microscope up.
We recommend checking parfocality
before set-
ting the stops and performing a teach-in with the
Leica Application Suite (LAS) if necessary.
Focusing the image
The focusing is controlled by the knobs (116.3,
p. 98) on the SmartMove remote control module.
Alternatively, use the focus wheels on either
side of the stand.
Fig. 114
1 Focus control buttons
1
The current Z position is shown on the
LeicaScreen. In the case of motorized stages,
the Z drive will travel to its lowest position prior
to the stage initialization when switching the mi-
croscope on.
The focus buttons Z
″ and Z on the right side of
the stand (Fig. 114) permit fast focusing or low-
ering of the objectives.
Setting stops
Set the lower focus stop by pressing and holding
the SET button and pressing the Z
button as
well.
The display will show .
Pressing the button combination again will de-
lete the stop.
The display will show .
The lower focus stop can also be set using the
Leica Application Suite (LAS).
The lower stop is the same for
all objectives and
can not be traversed.
In addition, a focus position that can not be tra-
versed can also be set.
To do so, press and hold the SET button and
press the Z
″ button as well.
The display will show .
Pressing the button combination again will de-
lete the stop.
The display will show .
The focus position can also be set using the
Leica Application Suite (LAS).
Set the focus position for the dry objective at the
highest magnification. The focus positions will
then be set automatically for all other objec-
tives, taking parfocality and working distances
into account.