Please check the result of the grid pattern finding.
Verify that most circles have a crosshair overlaid on top of them and that no crosshairs are overlaid on top of anything else.
The distance between camera and calibration grid is not siginificantly diffrent from the actual.
Failed to find grid patterns. Go back to the previous step to try again.
12.5%
25%
33.3%
50%
100%
200%
400%
800%
Zoom
distance between camera and calibration grid
mm