SD49425XB-HNR - Odd spotting on the lens
- Thread starter Jake1979
- Start date
I assume you cleaned the lens surface but it sure looks like moisture drops or similar on the lens surface.
CanCuba
Known around here
Starglow
Getting comfortable
Is it there at night or on cloudy days also? It could be reflections from the sunlight hitting it from a very bad angle.
Mike A.
Known around here
- May 6, 2017
- 4,170
- 6,992
Does kind of look like it's filtering through the trees in that pic.
My vote it's a combo of all the above: slight moisture inside the lens and filtered sunlight hitting at an angle as it comes through the trees.
Thermal cycling can draw in damp air as the housing cools off through poor, shrunken or dried out gaskets and seals, even via the pigtail going into the cam. It condenses inside, never gets out so it collects.
Oftentimes the cure is to bring the cam indoors, open it up in a dry environment, dry out with a hair dryer on low, let it stabilize to room temp, replace the desiccant packs and re-assemble, insuring all gaskets and seals are good, caulk those that appear to not seal well, caulk up inside pigtail also, use outdoor-rated silicone caulk.
EDIT 10/17: 0734 CT: I'd recommend this silicone caulk because it won't outgas as it cures which could fog up a lens. If used in place of a severely distorted, cut or missing gasket or seal, allow it to cure completely before re-assembly so it won't "squish out." ==>> Clear Electronic Grade Silicone - 2.8 oz Squeeze Tube
Thermal cycling can draw in damp air as the housing cools off through poor, shrunken or dried out gaskets and seals, even via the pigtail going into the cam. It condenses inside, never gets out so it collects.
Oftentimes the cure is to bring the cam indoors, open it up in a dry environment, dry out with a hair dryer on low, let it stabilize to room temp, replace the desiccant packs and re-assemble, insuring all gaskets and seals are good, caulk those that appear to not seal well, caulk up inside pigtail also, use outdoor-rated silicone caulk.
EDIT 10/17: 0734 CT: I'd recommend this silicone caulk because it won't outgas as it cures which could fog up a lens. If used in place of a severely distorted, cut or missing gasket or seal, allow it to cure completely before re-assembly so it won't "squish out." ==>> Clear Electronic Grade Silicone - 2.8 oz Squeeze Tube
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When you say open it up, is there an option to remove the from lens cover? I have not looked yet as it's 2 stories up. Even right now, on a cold day, I see the spots. Something must be dried on the inside. Kind of a bummer for an expensive camera.
guykuo
Getting comfortable
You are going to pull down the camera to take care of this. Access is via the rear hatch of the sphere. Then you pull the camera module out the rear to access the window. Not safe or practical to do at altitude.