Focusing - Leica DM5500 B Operating Manual

8. Operation

8.3 Focusing

!
Caution:
Make sure that the transmitted light
polarizer* is in the light path when the stage
is lowered to the bottom position. If it is
turned out of the light path, it may damage
the condenser plug.
Note:
Parfocality has been learned in at the factory.
Mounting the objectives, however, can change
the values so that parfocality has to be learned
in again.
We recommend to check parfocality before set-
ting the thresholds. If necessary, it can be
learned in with the Software Leica Application
Suite, module: Fine Tuning.
Image Focus
You can focus by using the turning knob (66b.3)
on the remote control element SmartMove or
Leica STP6000.
Alternatively, you can use the focus wheels on
both sides of the stand.
The current Z-position is displayed on the status
page of the Leica SmartTouch. When switching
on the microscope, before initialization the z-
drive will automatically go to a position which is
3mm below the most recently used Z-position.
64
Setting thresholds
The lower threshold can be set with the
LeicaScreen and with the Software Leica
Application Suite.
The lower threshold is the same for all objec-
tives and can not be overrode.
Leica DM5500 B and DM6000 B only:
An additional focus position, which can not be
overrode, can be set. This position should be set
for the DRY objective with the highest magnifica-
tion. For all other objectives it will be set automati-
cally, regarding parfocality and working distance.
Setting thresholds via:
LeicaScreen – navigation item
Leica STP6000
Software Leica Application Suite, module:
Fine Tuning
When the thresholds are set, this will be dis-
played on the Leica SmartTouch:
Go to thresholds via:
Leica SmartTouch – navigation item
Variable function keys at the stand and at
the SmartMove
Leica STP6000
Software Leica Application Suite, module:
Fine Tuning or Acquire