Zeiss Auto Focus, Руководство по эксплуатации

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OPERATION
Auto Focus equipment Setting focus reference values Carl Zeiss
06/2013 425131-7044-001 31
4.8 Setting focus reference values
The focus reference values of the objectives are obtained by the PC via the configuration program
MTB 2011 (2.1.0.8) or higher, or via the parfocality / parcentricity correction on the TFT display of the
microscope. A mirror surface serves here as a reference sample.
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The focus reference values must be set individually in the MTB for each objective, one after the other.
For the current used objective, the newly, manually set focus position is applied as a reference
position.
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Setting the focus reference values replaces the existing list of objectives with a special user objective
list. The values obtained during the manual calibration may differ from the existing values, however
they reflect the situation of the objectives actually in use. Following a restart of the controller, the
values thus received are saved in a special user list and serve as the new reference values. The factory-
set reference values will still apply for any non manually-calibrated objectives.
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The focus reference values of individual objectives can be deleted from the user list by using the
Reset
button in the MTB. This deletes the objective currently in use from the user list. The deleted values are
removed from the user list when the controller is restarted. The factory settings will then be applied
for any of these objectives if no other focus position calibration has been carried out.
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It is also possible to calibrate the Auto Focus using the parfocality / parcentricity correction from the
TFT display on the microscope. The values thus obtained are also saved in the special user list at the
end of the correction and upon a subsequent restart of the Auto Focus controller. These values will
then serve as the new reference values.
A recalibration requires a regular shut down of the controller; if it is switched off from the circuit
breaker of a power stripe multiple socket extension, the data is not permanently saved.
Regarding the parfocality / parcentricity correction, please also read the relevant section in the
operating instructions of the Axio Imager 2 / Axio Imager Vario 2.
If an IR damping filter is retrofitted, the focus reference values will need to be recalibrated, see
section 4.8 on page 31.
In AxioVision (version 4.9.1 or later), also use the focus bar beneath the live image to assist in the
recalibration.