Thank you for the responce! Unfortunatelly I can't say that for sure... I know it seems stupid but the camera is located on a very high column and I can't access it durring the night when the problem starts. We used a big excavator today to get to the camera and there was no signs of condensation either inside or outside the camera. Could it be an electronic malfaction (damaged capacitors) because of the overheating from the projector? Where should I expect condensation?