Dahua Starlight problems
- Thread starter rtarikr
- Start date
fenderman
Staff member
- Mar 9, 2014
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Hello Fenderman,
I have the Dahua HDW2802T-Z-A i have try the noise reduction but no result or the result is better but i get all white pixels in the screen.
fenderman
Staff member
- Mar 9, 2014
- 36,891
- 21,407
I think that is motion blurrr.
It is a Big sensor size 4k cam.
1/2 inch sensor. But is has 8million pixels.
So pixels size is very small. So at night not enough light on the sensor with moving objects....
Thats the power of the 2mp starlight cams. Big sensor... 1/1.9inch and the pixels mu size is big.
It is a Big sensor size 4k cam.
1/2 inch sensor. But is has 8million pixels.
So pixels size is very small. So at night not enough light on the sensor with moving objects....
Thats the power of the 2mp starlight cams. Big sensor... 1/1.9inch and the pixels mu size is big.
Hello Guido87,
Bedankt voor je duidelijke uitleg. Ik ga even kijken wat ik hiermee ga doen wellicht toch een 2mp starlight camera ophangen.
Hello Fenderman,
If i made a extra light in the front will be the problem solved? Because i dont want to switch to ir
Also because of the small pixel size, there is a lot of noise in the picture with the 8mp. Because of the small pixel size.... and not enough light.
Thats why the 8mp cam only 15fps because if you go to 60fps for the 5231 then there is not enough light... 60 frames in a second. So 1/60 of a second to catch the light for 1 image....
Thats why the 8mp cam only 15fps because if you go to 60fps for the 5231 then there is not enough light... 60 frames in a second. So 1/60 of a second to catch the light for 1 image....
fenderman
Staff member
- Mar 9, 2014
- 36,891
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you will need alot more light...or switch to a more sensitive camera full color camera like this IPC-HFW4239T-ASE (Full Color Starlight) as a weather camHello Fenderman,
If i made a extra light in the front will be the problem solved? Because i dont want to switch to ir
they might have a similar model for CVI
bigredfish
Known around here
Thank you all for the helpful advice. I order monday the full color camera and gonna test it. I let you know the result.
Hello everybody,
The problem is solved with the new Dahua full color starlight camera. No more ghost effect or motion blurr.
The night is very clear with minimum of light.
Model number: HAC-HDW2249T-A
The problem is solved with the new Dahua full color starlight camera. No more ghost effect or motion blurr.
The night is very clear with minimum of light.
Model number: HAC-HDW2249T-A
mat200
IPCT Contributor
- Jan 17, 2017
- 16,077
- 27,012
Hello @mat200
I replace the 4K starlight camera for a 2mp full color starlight camera. That model have a sensitive chip of only 0,0001 lux.
If you want a clear nightvision in color choose the new serie off Dahua full color.
Last edited:
Hi All,
Old subject but I am having the same issue with my new cameras. IPC-HDBW2831R-ZAS-S2 (Firmware 2.800.0000000.10.R,2019-11-23)
The other night, someone came next to our car on our driveway to see if we left the car doors unlocked or not. A thief. All I have is a blury ghost like image. Couldn't be used as evidence as it wasn't showing much.
I have seen some info about this issue on this forum and tried to apply them. Here are some screenshots: current camera view, ghost images of incident and current settings.
Could you please shed some light on this if there is any other improvements available to do?
Thanks in advance
Old subject but I am having the same issue with my new cameras. IPC-HDBW2831R-ZAS-S2 (Firmware 2.800.0000000.10.R,2019-11-23)
The other night, someone came next to our car on our driveway to see if we left the car doors unlocked or not. A thief. All I have is a blury ghost like image. Couldn't be used as evidence as it wasn't showing much.
I have seen some info about this issue on this forum and tried to apply them. Here are some screenshots: current camera view, ghost images of incident and current settings.
Could you please shed some light on this if there is any other improvements available to do?
Thanks in advance
Attachments
bigredfish
Known around here
1- not enough light
2- camera mounted way to high
3- 8MP cameras don’t generally do well at night
4- Exposure generally needs to be much faster
Basically you need to start over.
Even if you were to add a 5000 lumen motion flood, set your exposure to 1/120 or so, and change the camera out to one that is actually good at low light, like for instance a 5442 series, you would still only see the tops of heads and get no good facial recognition
2- camera mounted way to high
3- 8MP cameras don’t generally do well at night
4- Exposure generally needs to be much faster
Basically you need to start over.
Even if you were to add a 5000 lumen motion flood, set your exposure to 1/120 or so, and change the camera out to one that is actually good at low light, like for instance a 5442 series, you would still only see the tops of heads and get no good facial recognition
zero-degrees
Known around here
- Aug 15, 2015
- 1,335
- 844
@wrx5
Sorry, but @bigredfish hit most of the nails on the head. Even if that camera would have been the correct camera with proper setup and config your image still would have been completely useless. All you would have been able to tell the police was "A person had a hoodie on that looked in my car".
First you need to goto a lower resolution camera (2mp starlight for example) to assure you have quality night time images. Second you need to mount that thing about 15' lower on your house.
Sorry, but @bigredfish hit most of the nails on the head. Even if that camera would have been the correct camera with proper setup and config your image still would have been completely useless. All you would have been able to tell the police was "A person had a hoodie on that looked in my car".
First you need to goto a lower resolution camera (2mp starlight for example) to assure you have quality night time images. Second you need to mount that thing about 15' lower on your house.