WDR DAY & NIGHT COLOUR CAMERA WDR DAY & NIGHT COLOUR CAMERA-29-* Camera Adjustment① Connect Video & Power Line (AC 24V or DC 12V Regulated Power)② Position the camera for the correct angle of view.③ Loosen the locking screws and focus the camera.④ Re-tighten the locking screws.DC Auto Iris Varifocal Lens(4mm-9mm)