I picked up an EmpireTech 4K Full-Color Ultra Low Light 8MP. Outstanding camera. Outdoor picture quality is awesome and the web interface is a step up from what I have been using. I was doing some test shots indoors and I noticed that when I had it in areas where there was LED light fixtures such as a 4' long 6 bulb fixture or even some new 2x4 ceiling flat panels, there were large horizontal scrolling lines showing up in the image. I didn't find too many posts about this, and I have only tested this camera in this building. Is there a particular setting that should mitigate this problem?
LED Light Interferance
- Thread starter danletkeman
- Start date
You need to find a shutter speed that isn't the same phase as the LED. So try an odd shutter speed and see if it helps. It does outdoors so I would think it would indoors
Do these cameras have an anti flicker setting?
The setting you want is below the red box.
The setting you want is below the red box.
The problem with the anti-flicker option is it also then eliminates some parameters that you can set as it forces the camera to not allow the user to change a parameter that can bring it back.
Anti-flicker does not allow a shutter speed faster than 1/100, nor does it allow the user to give the shutter speed a range, and does not allow a user to turn on WDR. It may take away others as well, but I know those two for sure.
The problem can be solved with a shutter speed adjustment, which is what I recommend so that a user maintains full ability to adjust camera parameters.
You want to stay off shutters that are whole number divisible by 50 or 60 (depending if you are in a 50 or 60hz area). So you try and odd shutter speed like 1/87 (11.49ms) or 1/66 (15.15ms), etc.
Anti-flicker does not allow a shutter speed faster than 1/100, nor does it allow the user to give the shutter speed a range, and does not allow a user to turn on WDR. It may take away others as well, but I know those two for sure.
The problem can be solved with a shutter speed adjustment, which is what I recommend so that a user maintains full ability to adjust camera parameters.
You want to stay off shutters that are whole number divisible by 50 or 60 (depending if you are in a 50 or 60hz area). So you try and odd shutter speed like 1/87 (11.49ms) or 1/66 (15.15ms), etc.
Last edited:
CCTVCam
Known around here
- Sep 25, 2017
- 2,875
- 3,757
I'm on 50hz and have seen no banding from shutter speeds of 125 or 250th. I allow the camera to range so it could be setting others, but have had no issues.
biggen
Known around here
- May 6, 2018
- 2,796
- 3,207
Canada is a 60hz system right? If those rolling bands are really from lighting, then you will be limited to shutter settings of factors of 120. So 1/120, 1/60, 1/30, etc… Here is my post talking about it and the camera: Help tweaking 4K-T
Here is a website that goes into details about it:Avoid Video Flicker: Understanding PAL (50Hz) & NTSC (60Hz)
Here is a website that goes into details about it:Avoid Video Flicker: Understanding PAL (50Hz) & NTSC (60Hz)