To calibrate, draw a calibration ruler.

The ‘Motorized Objective’ checkbox must be checked.

Enter the correct ‘Ruler Length’.

Click the ‘Calibrate this optics objective’.

In the Open the ‘Optics Configuration Editor’ the objective will now appears as a ‘star’, showing that this is a motorized objective with read back of the zoom.

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If using an encoded nosepiece with more objectives, then the objectives MUST be defined in order – first position 1, then position 2 etc.