The calculated focal distance of the lens is displayed.
Check if the value is appropriate for the lens in use. The nominal focal distance is labeled on the lens.
The nominal focal distance is labeled on the lens. In the case of [1-plane calibration], if the [W] and [P] values in the [Position of Camera Relative to Calibration Grid] section are both less than several +/- degrees, the focal distance cannot be measured accurately. Therefore, in the [Calibration], set [Camera Distance] to [Override Focal Distance] and enter the nominal focal distance of the lens in use. If you enter the focal distance, the calibration data is automatically recalculated. Note the user can compare the Z value in Position of Camera relative to Cal Grid with the measured distance of camera lens to grid (Z value). Please modify focal distance until the two Z values are close.