11 CALIBRATION FUNCTION
The calibration can be done through a small or large value of magnification, the
most accurate calibration will be achieved when the zoom value is closer to that
used for the measure
The calibration can be removed by selecting "Clear Calibration" menu "ruler"
The measures to be addressed without deleting the calibration disabling
"Measure with Adjusted Mag."
"The Adjusted Mag.", will not be shown if the calibration is off
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