25 Bad image example 2 (Too dark): 5 Select the Camera setting (2D) tab page. Confirm that the 2D imaging ON check box is selected. Click the Change display button to display the through image. While viewing the through image, set Shutter speed, Camera gain, and Light gain so that the dot pattern is visible without halation on the camera calibration target image. Good image example: Bad image example 1 (Too bright):