I am not certain if we have a bad run of these cameras or what. Daytime- great picture, no issues. Night time- Used to be good, but not any more. It seems that the dome itself is allowing light reflection/refraction? It does not appear to specifically be coming from the internal IR emitters, but this model does not allow manual on/off of the IR. See example pics:
Tech support asked us to try one of the cameras in a different environment, so we removed this one and connected it in the attic. You can see on the attached pic that it seemed to work perfectly with the lights off:
Now we used a small flashlight pointed at the side of the dome (not directly into or at the lens) and see what happens:
Anytime the flashlight was pointed at the "dome" there was definitely an affect. It sure appears that the "dome" itself is causing this? We are aware of the rubber gasket around the lens of the camera that should be touching the dome, but there is not really a lot that you can do to manipulate that.
Note: If we take the dome cover off the issue goes away entirely.
Certainly open to ideas or suggestions, but we have about 20 of these (2 different sites) that are doing this and none of them did when fist installed in the past year.