The calibration board should be placed on a pedastal in the middle of the camera view and preferably without any twist.
At least the board should fill 2/3 of the image but all squares needs to be visible.
To calculate the correct Nodal Point it´s necessary to know the actual distance from the center of the CCD-Sensor to the center of the board.
Since it isn´t possible to measure exactly from the middle of the sensor it must be measured from outside of this.
This “outside measurement point” should be parallel and 90° from the center of the CCD-Sensor.
The offset of the “outside measurement point” to the center of the CCD-Sensor is the offset “A”.
The distance of the “outside measurement point” to the center of the Calibration Board is the distance “B”.
These distances needs to set in the wizard.
When the distances are filled out correctly a capture of this frame is necessary.
The Button “Capture Nodal Point” grab the actual frame.
A click on next get to the following pages: