IR halo ring issue in a IPC-B52IR-Z12E S2.

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xplorer

Pulling my weight
Jul 6, 2020
83
130
Michigan
Camera sold as IPC-B52IR-Z12E S2, Under device info it Identifies as IPC-HFW5241E-Z12E-S2

System Version V3.100.0000000.5.R, Build Date: 2023-05-09

Camera suffers from a full circle halo from its own IR illuminators.

Sample picture,

Please note that here I added the red circle approximating what would be the I.D. of the halo.

Cam19 ir ring.jpg

Same image again and without my added red ring.

cam 19.jpg

Troubleshooting done thus far,

Wash the lens/front glass to be sure its clean?
It is spotless.

Verify that there is nothing near it that could possibly induce an IR bounce-back?
No nothing, plus the the built in "visor" on top is slid and locked all the way back as far as it goes.

Testing strongly suggests that the effect is caused by all 4 emitters equally, not limited to one pair or just one out of alignment for example. if that is even possible. To me it seams like a shield is missing or slid out of place?

Open to suggestions on what I should try to correct the problem.
 
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How is it mounted?

Can you show a picture looking back at the camera?

I have a buddy who has his mounted in a custom birdhouse. If the lens isn’t pushed out enough, he gets that identical ring from IR glare off the enclosure
 
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My money is on IR bounceback from the metal roof down at the lower left.
 
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I am leaning with it being IR bounce off that metal building as well.

Slight chance that the IR ring/gasket is misplaced, but it rare to see that in bullets and usually only happens in dome cameras.
 
Personally don't think it's the shed. Normally would see good light on roof, it looks far enough away.

Looks like light reflection off front lens caused by ir plate not being installed correctly.. or something close to camera housing not in shot reflecting light that is bouncing down lens.

Also could be caused by outside housing being cold and inside warming. If say camera was off in the cold when returning power the warm of electronics causes inside fogging until camera temps become equal.

To understand better seeing picture of camera zoomed all way in and all the way out will help understand the issue. Will expand contract change shape and all are clues to the cause.
 
It would take 30 seconds to rule out the shed roof and not have to touch the camera.......throw a dark colored tarp over it.:headbang:
 
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This is an older model but same design, my guess is might have used same design. While so many others will say camera design not possible to have inside ir issues and I have seen it personally in again different but same design camera. This dahua and my guess might be like yours has the ir holding the camera lens divider to glass. In my case in shipping to end user or bad install either way it was shifted enough that the ir was bouncing to the glass and by design I would've thought impossible. After adding a thin black felt to edges of lens cover and putting the IR board back in the issue was gone.

Not saying that is your issue but that was overall look of halo

Could be shed, maybe just enough light off one of the ridges to reflect back to bounce down throat of lens.

Anyway would double check ir plate make sure it's mounted to face snug.
 

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