Replace ColorVu cameras with IR

Robertomcat

Pulling my weight
Mar 5, 2023
154
120
Quatretonda PV
Hello, good afternoon.

I currently have two Hivision ColorVu DS-2CD2387G2-LSU/SL cameras in my garage, and I think it's the worst purchase I've ever made. These cameras are about two years old, and during the day they work wonderfully, but at night the ghosting and pixelation are quite disastrous.

I've decided to replace them and want to replace them with two Dahua cameras with the same 8MP camera features, IR, and strobe siren.

I bought two cameras from Andy a while ago. Hopefully, with a bit of luck, he'll have some more with the features I mentioned earlier. Thank you very much.
 
Hello, good afternoon.

I currently have two Hivision ColorVu DS-2CD2387G2-LSU/SL cameras in my garage, and I think it's the worst purchase I've ever made. These cameras are about two years old, and during the day they work wonderfully, but at night the ghosting and pixelation are quite disastrous.

I've decided to replace them and want to replace them with two Dahua cameras with the same 8MP camera features, IR, and strobe siren.

I bought two cameras from Andy a while ago. Hopefully, with a bit of luck, he'll have some more with the features I mentioned earlier. Thank you very much.
 
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Hello, good morning. Thanks for the reply. Searching your website, I also found the 8MP version, which seems like a better option. Thanks! I'll contact Andy.
 
Hello, good morning. Thanks for the reply. Searching your website, I also found the 8MP version, which seems like a better option. Thanks! I'll contact Andy.

I know we have had this conversation before LOL

In low light, the lower MP camera on the same size sensor as the higher MP will outperform the higher MP camera.

If pixelation and ghosting is bad now, it will be bad with a camera on the less than ideal MP/sensor ratio.

At night, at the fringes, the 4MP will show an identifiable image where the 8MP will show an unidentifiable blob. And when the 4MP is showing an unidentifiable blob, the 8MP won't know anything is there at all.
 
I know we have had this conversation before LOL
Hello @wittaj, how are you?
Yes, we were talking about the same thing a while back, and I remember. I have several links saved for this information. But this time I'm going to use infrared at night. I don't want 24-hour color anymore; at night, it's a disaster.

I had chosen the 8 MP camera because, with a 1/1.8 sensor, it was at the limit of what could be acceptable. The thing is, I can't find that camera model Andy has on his website, among the Dahua models.

I still have this photo saved from the last time we talked here, along with this link.

 
While IR will be more beneficial, the same applies with IR.

I wish we could post images because I would post you two night images from a lower and higher MP on the same sensor. It makes a difference even with IR.
 
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While IR will be more beneficial, the same applies with IR.

I wish we could post images because I would post you two night images from a lower and higher MP on the same sensor. It makes a difference even with IR.
Yes, I know there's a difference between the two specifications, and I'll have to choose the 4MP one so I don't end up with the same thing that already happened to me. Thanks! But what are the original models from the two links we've posted from Andy's website? I can't find these two models which I think are identical, the only difference is the megapixels.
 
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I know it's not a Dahua, but you can try Unifi G6 Pro. 1/1.2' inch sensor with IR, so 8MP should work.
 
Simple answer is give the camera some light. Put a light on a timer and run it all night. You only need a small led bulb of a couple of watts to bring the light levels up to where the Colorvu are probably going to give a decent picture without the issues you're describing. BTW pixellation and ghosting are both products mainly of too much gain and too slow a shutter which again is the product of you trying to compensate for a lack of light, athough you can also get hot pixels when there's insufficient light. I imagine your garage is total darkness at night as the only light in there will be any that leaks under the door or maybe from a side window. I'd try fitting a 200-300 lumen led bulb. That's probably going to be around 3-4 watts which is nothing to run and probabl less than the IR leds in a different camera. Aims: Gain max 50, shutter 4-6ms.
 
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Simple answer is give the camera some light. Put a light on a timer and run it all night. You only need a small led bulb of a couple of watts to bring the light levels up to where the Colorvu are probably going to give a decent picture without the issues you're describing. BTW pixellation and ghosting are both products mainly of too much gain and too slow a shutter which again is the product of you trying to compensate for a lack of light, athough you can also get hot pixels when there's insufficient light. I imagine your garage is total darkness at night as the only light in there will be any that leaks under the door or maybe from a side window. I'd try fitting a 200-300 lumen led bulb. That's probably going to be around 3-4 watts which is nothing to run and probabl less than the IR leds in a different camera. Aims: Gain max 50, shutter 4-6ms.
The cameras have lighting from windows facing outside, but I have to slow down the shutter speed to 1/12 to capture good lighting in the scene, and that creates terrible ghosting.
 
Hello, good afternoon.

I currently have two Hivision ColorVu DS-2CD2387G2-LSU/SL cameras in my garage, and I think it's the worst purchase I've ever made. These cameras are about two years old, and during the day they work wonderfully, but at night the ghosting and pixelation are quite disastrous.

I've decided to replace them and want to replace them with two Dahua cameras with the same 8MP camera features, IR, and strobe siren.

I bought two cameras from Andy a while ago. Hopefully, with a bit of luck, he'll have some more with the features I mentioned earlier. Thank you very much.
The cameras have lighting from windows facing outside, but I have to slow down the shutter speed to 1/12 to capture good lighting in the scene, and that creates terrible ghosting.

Yours old cameras are identical to Dahua Color4K with 1/1.2" sensor - which have very good light sensitivity..
If they can't capture image at night, it means that you simply don't have light there at all...

You should buy hybrid cams with both IR and white.. Dahua have TIOC-PRO (aka Color4M / Color8M).. In two weeks there should be new higher 54PRO/58PRO (5x59-PRO) line available..
HIK have hybrid ColorVu 2.0 or ColorVu 3.0 models.

All of them are using the same 1/1.8" 4/6/8 Mpx image sensors.. All of them have hybrid IR + white..
If you have totally dark environment, choose cameras with 4 hybrid lights (turrets have usually only 2) and better IR/white range spec in spec sheet..
 
The cameras have lighting from windows facing outside, but I have to slow down the shutter speed to 1/12 to capture good lighting in the scene, and that creates terrible ghosting.

You don't have enough light. I have the 4kT Dahua which are almost identical and I can get a decent picture with around 300-400 lumens and that's outside not in a small enclosed space like a garage and that's on a gain of 50 and a 4ms shutter. If it's that dark your colourvu requires >50 gain and an 80ms shutter, no colour cam will see without additional light. That's definately IR territory. 80ms is a huge shutter speed and 20 times longer than what I'm using - 1/250th. On mine have motion sensored flood lights to fill in to allow a great picture with minimal gain once triggered. However, the camera has to see in the dark 1st just in case the flood doesn't trigger and to avoid missing anything, and your garage is very very dark based on your setting, I'd say almost pitch black.