Michael, are you referring to the image being fogged up? If possible, an image might help provide better advice / feedback.
No it's not the image that is foggy, the problem is that I have some fog (water) on the leans and during cold weather it freeze. The first picture is after 5 days of the install and the second one is now.
This is another example:
IPVMU Certified | 01/14/15 05:20pm
Michel, is the cable entrance port into the camera sealed? It looks as though warm air is possibly entering into the camera from inside the building, usually enters through the cable entrancee port. Once inside the dome the warm air meets the cold exterior air and condenses. I would seal up any areas where air can be transfered from building into camera.
here is a picture of one of the cam:
Thanks to everyone for your inputs. I have personally gone on site to see if the cable entry from the wall was seal and it was not. The hole was pushing hot humid air input the camera. So I believe this problem was an installation problem.
I'm not sure I understand the comment, we are talking about POE cameras, therefore only one wire goes to the camera.
It goes either directly from inside the building through the wall into the camera, and in that case if the hole is not properly backfilled, you may get air contamination otherwise, the hole is at distance from the camera and you have to run the wire inside a pipe.
Been there - done that. On pendant mounts, my solution is to coat the cable with silicon spray, rubbing with rag, leave enough cable for the camera, fill the pendant cavity with firestop spray. Also fill the building holes with firestop.