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Article ID: NDS1137 — Created: 29 Jan 2018 — Reviewed: 13 May 2018
What predictive focus method settings are available and how are they used?
Prior to uScope Navigator v4.3, the only predictive focus setting was the grid spacing which specified the maximum number of fields between prediction points.
Starting in uScope Navigator v4.3, the predictive focus method was enhanced as follows:
The following settings control the predictive focus algorithm. You may change these parameters to suit your requirements.
The step size specifies the number of motor steps to move the objective (0.1984 microns per step). So, 10 steps are equivalent to 1.984 microns (0.001984mm). The step range specifies the range (in motor steps) above and below a mid-point. So, a step range of 100 is equivalent to 201 steps in total (100 motor steps above and 100 motor steps below a mid-point).
Refer to Step Size and Range Settings for more information.
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