Guest Posted December 31, 2008 Hi! I have enclosed 2 images for showing this issue. When the IR leds go on, the picture gets grey, and we can't see anything, the same camera model is also in use other places working ok, but not on this specified location. Any ideas? Any at all? Best Regards JD Share this post Link to post Share on other sites
Erron S. 0 Posted December 31, 2008 It looks to me that the polycarbonate lens has begun to degrade and is now not passing the IR light through. There are a number of IR cameras that use 2 seperate lenses on the housings because of this. That's my best guess anyway... Share this post Link to post Share on other sites
Guest Posted December 31, 2008 This was not a bad idea, as you can see from one of the pictures! You can see the sea, I dont know if the glass/plastic/polycarbonate can react on salt crystals form winds carrying some sea water. Also customer could have washed it with some liquids that could also have a negative effect. JD It looks to me that the polycarbonate lens has begun to degrade and is now not passing the IR light through. There are a number of IR cameras that use 2 seperate lenses on the housings because of this. That's my best guess anyway... Share this post Link to post Share on other sites
Scruit 0 Posted December 31, 2008 Also looks like a weatherproof camera with a bad seal - moisture condensing inside the glass. When it warms up the condensation evaporates again. Share this post Link to post Share on other sites
rapid 0 Posted December 31, 2008 Cameras needed to be focused at night with the IR on. If you've changed the lens during the install you'll need to do this. Once this is done, the picture will be great during the day. Share this post Link to post Share on other sites
Scruit 0 Posted December 31, 2008 Cameras needed to be focused at night with the IR on. If you've changed the lens during the install you'll need to do this. Once this is done, the picture will be great during the day. I got this effect on weatherproof bullets where the focus was set from the factory. The picture was great at night when it was was dry, but when it was wet the lens would get condensation. After replacing the rubber o-ring (raiding the A/C o-ring set in my workshop!) is was fine in the wet too. Share this post Link to post Share on other sites
scorpion 0 Posted December 31, 2008 I would go with the idea that you have a condensation problem. I also notice that you do not have enough IR going out to the area that you are viewing. Can you put some silica pack inside of the cameras? Share this post Link to post Share on other sites
Guest Posted December 31, 2008 I would go with the idea that you have a condensation problem. I also notice that you do not have enough IR going out to the area that you are viewing. Can you put some silica pack inside of the cameras? That one is already tried! Thanks! JD Share this post Link to post Share on other sites
Scruit 0 Posted January 1, 2009 I would go with the idea that you have a condensation problem. I also notice that you do not have enough IR going out to the area that you are viewing. Can you put some silica pack inside of the cameras? That one is already tried! Thanks! JD What type of cameras are they? Can you post a picture of the camera itself? Share this post Link to post Share on other sites
Guest Posted January 1, 2009 Yes how stupid off me! Here is a link too the camera: CNB-1700P I would go with the idea that you have a condensation problem. I also notice that you do not have enough IR going out to the area that you are viewing. Can you put some silica pack inside of the cameras? That one is already tried! Thanks! JD What type of cameras are they? Can you post a picture of the camera itself? Share this post Link to post Share on other sites
kensplace 0 Posted January 1, 2009 Looks like condensation to me also, it looks very cold out there with that snow, the IR comes on, the leds get warm, condensation forms... What happens if you watch the footage back, does the effect form slowly? Share this post Link to post Share on other sites
Guest Posted January 1, 2009 I am not sure about this, if I have time tomorrow I will log on when it start to get less light tomorrow. JD Looks like condensation to me also, it looks very cold out there with that snow, the IR comes on, the leds get warm, condensation forms...What happens if you watch the footage back, does the effect form slowly? Share this post Link to post Share on other sites
