[ICA-HM131/131R] How to adjust the fouce and angle of lens?

Use the L-type spanner in the bundled package to unscrew the cover.
Loosen the focus fixed screw, and rotate the lens counter-/clockwise to adjust focus; loosen the tilt fixed screw, and adjust the camera’s tilt angle. You could get detail descriptions on the user’s manual. Without loosen the pan/tilt fix screw and adjust with violent could damage the lens.