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4.3. Magnification Calibration
• If you choose more than ‘1’ you will be prompted to move to a new location between
each of the measurements.
b) the number of averages for the measurement.
• Averaging several measurements to create the reference surface can reduce the noise
in the final reference surface.
• Normally 2 to 4 averages are sufficient.
c) whether to perform an auto-focus before the measurement.
• It is never necessary to perform an auto-focus before a VSI reference generation but
it is recommended for the generation of higher magnification PSI references.
6. At the termination of the reference generation algorithm a final dialog appears and the gen-
erated surface is displayed. Carefully check the image to ensure that the surface contains no
flaws, specs of dirt etc. If it is good accept it.
4.3 Magnification Calibration
The magnifications of all the optics in your ContourGT-K system were calibrated at the factory.
Further calibration is only required if you add additional objectives or FOV lenses to your system. If
this situation should occur, please refer to the Magnification Calibration section of the “ContourGT-
K Installation and Maintenance Manual”.
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