Help figure out what's happening

[TheE]

Please see the video. Pay attention to the ground, it looks like a steady wave of light movement. There is nothing above moving, just an LED light.


I have also included the camera settings. Any idea how to fix this?

View attachment Screen Recording 2025-07-08 at 20.44.11.mov

 

[bigredfish]

I call it Rolling Shutter

It happens when the exposure is too fast for the amount of light basically. (I'm sure someone will have a better technical explanation but thats what it is in reality)

I see it all the time trying to run cameras in color at night or in low light (Even B&W running IR in some cases). Slow the shutter down in .5 increments until is quits enough to not be real noticeable (5.0, 5.5 etc)

It seems worse on newer (past few years) cameras than the older ones for some reason. I usually have to go as much as 7-8 to get it to clear up enough to live with

 

[Ri22o]

It's a combination of the shutter and frequency of the LEDs. You can see it here with my LED Christmas lights. These are static lights and do not have any sort of programming. I was able to fix it by messing with the exposure settings.

 

[bigredfish]

You can also try running Anti-Flicker mode at 60MHz which may help clear it, but you are then limited to 1/120 shutter max

As I said above, its a shutter thing. Too fast and it wont get better going faster.

Here's a 4K cam running 0-4ms and then at 0-7 where I normally keep it

0-4ms
View attachment 192.168.1.110_ch5_20250708220846_20250708220910.mp4

0-7ms
View attachment 192.168.1.110_ch5_20250708220758_20250708220814.mp4

 

[bigredfish]

It's a combination of the shutter and frequency of the LEDs. You can see it here with my LED Christmas lights. These are static lights and do not have any sort of programming. I was able to fix it by messing with the exposure settings.

Thats actually a bit different. That is true frequency. Notice how the entire scene does not roll, just the lights on the tree.

Mine is rolling shutter, no LED's anywhere

 

[TheE]

Thank you, everyone!

If I were to enable Anti-flicker, which one of these shutter settings below would be the closest to my current shutter speed of 0-4.5ms? My current shutter speed of 0-4.5ms works great in this area to catch faster-moving forklifts.

 

[bigredfish]

None. The fastest is 1/120 which is 0-8.33

 

[TheE]

None. The fastest is 1/120 which is 0-8.33

Thank you for this conversion!

 

[Ri22o]

Thank you for this conversion!

1 / 120 = .008333333

.008333333 x 1000 = 8.33ms