Dahua HDW3549 camera for additional coverage of parking at front of property

ruasonid

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I need an additional camera (existing is IPC-HDW5231R-Z ) to cover the parking area on the property from a different angle. I'm using Blue Iris 5.3.0.3. The HDW3549 is available here in UK for a good price. I'm interested to experiment with the warm light although it's not a must since there will be a floodlight adjacent. Would this camera be OK or are there any better options to consider?
 

Flintstone61

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If it's that one, AND you mention an existing floodlight it should be ok. I have the same sensor ratio on my Dahua knockoff's ( amcrest) turrets. here are a couple pics with that 5mp 1/2.7 sensor. I'm currently fooling around with manual shutter speed ranges in color at night.
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ruasonid

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DH-IPC-HDW3549TMP-AS-LED The LED pitch seems different compared to the camera you referenced above.

Are you suggesting it is not so good in low light and needs a floodlight?
 

Flintstone61

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Yes, ok, your link looks even more like the Amcest version. it has the plastic release tab, like mine. I just don't have LED's on my model. But I have enough driveway light.
 

wittaj

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The white light on these cameras would be comparable to holding a mobile phone at the camera location and turning on the flashlight - is that bright enough to light up your parking area? Probably not.
 

ruasonid

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The white light on these cameras would be comparable to holding a mobile phone at the camera location and turning on the flashlight - is that bright enough to light up your parking area? Probably not.
No, but possibly it could add a fill behind the range of the floodlight.
 

Flintstone61

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In trying to complete my IP camera build, at home I was stalling because i needed 3 more cams, and the budget wasnt there. So I paid $47 US and got 3 of them, the weather wont be installer friendly in another month.
and yes I'm not a fan of the plastic release tab. and the non locking eyeball. But, 2 of mine are inside, and 1 is on the porch. for $47 if you vandalize the porch one, I wont cry.
 

sebastiantombs

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The key is not megapixels. The key is sensor size and there is a definite relationship with good night vision, resolution and sensor size. Note that this list does not include 3MP or 5MP cameras. That is because there is no 3MP or 5MP camera with the right sensor size to produce good night, low light, video.

The smaller the lux number the better the low light performance. 0.002 is better than 0.02
The smaller the "F" of the lens the better the low light performance. F1.4 is better than F1.8
The larger the sensor the better the low light performance. 1/1.8" is better (bigger) than 1/2.7"
The higher the megapixels for the same size sensor the worse the low light performance. A 4MP camera with a 1/1.8" sensor will perform better than a 8MP camera with that same 1/1.8" sensor.

Disclaimer - These sizes are what the manufacturers advertise and may, or may not, be the true size of the sensor in the camera.
720P - 1/3" = .333"
2MP - 1/2.8" = .357" (think a .38 caliber bullet)
4MP - 1/1.8" = .555" (bigger than a .50 caliber bullet or ball)
8MP - 1/1.2" = .833" (bigger than a 20mm chain gun round)
 

ruasonid

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  • 1/2.7” CMOS image sensor, low illuminance, high image definition
So it's not a Starlight, but is it good enough in the dark?
 

ruasonid

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The key is not megapixels. The key is sensor size and there is a definite relationship with good night vision, resolution and sensor size. Note that this list does not include 3MP or 5MP cameras. That is because there is no 3MP or 5MP camera with the right sensor size to produce good night, low light, video.

The smaller the lux number the better the low light performance. 0.002 is better than 0.02
The smaller the "F" of the lens the better the low light performance. F1.4 is better than F1.8
The larger the sensor the better the low light performance. 1/1.8" is better (bigger) than 1/2.7"
The higher the megapixels for the same size sensor the worse the low light performance. A 4MP camera with a 1/1.8" sensor will perform better than a 8MP camera with that same 1/1.8" sensor.

Disclaimer - These sizes are what the manufacturers advertise and may, or may not, be the true size of the sensor in the camera.
720P - 1/3" = .333"
2MP - 1/2.8" = .357" (think a .38 caliber bullet)
4MP - 1/1.8" = .555" (bigger than a .50 caliber bullet or ball)
8MP - 1/1.2" = .833" (bigger than a 20mm chain gun round)
Any suggestions for an alternative (budget friendly)?
 

Flintstone61

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yes, thats a better turret than mine, because of the screw down lock. .....as long as you have some floodlight in the parking area, you could certainly use it. But it is a budget camera, and there are better sensors, but you pay for it.
 

wittaj

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Starlight is a useless marketing term - means nothing...

If dark setting performance is your concern, you need to chase sensor size not MP and need to find a camera on the ideal MP/sensor ratio.

Most of us with cameras with the white LED don't use the white LED as the ambient light is far better than the built-in light.
 

sebastiantombs

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Here's a couple of alternatives but they are 2MP. The 2231 is a basic camera, no audio or AI featuures. The 3241 is a step up with audio and basic AI, vehicle and person detection. Both are varifocal. The 2231 is in the $125 range and the 3241 is in the $140 range.

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kobebeef

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If it's that one, AND you mention an existing floodlight it should be ok. I have the same sensor ratio on my Dahua knockoff's ( amcrest) turrets. here are a couple pics with that 5mp 1/2.7 sensor. I'm currently fooling around with manual shutter speed ranges in color at night.
Amcrest is not Dahua knockoff.
It is Dahua OEM for amcrest
Amcrest doesn't have the ability to repair,
if the customer needs to repair, it will be handed over to Dahua for repair by Amcrest.
The CMOS of IP5M-T1179EW and IPC-HDW3549H-AS-PV are different.
Maybe the difference between OS05A10 and OS05A20.
Then HDW3549H-AS-PV-S3 CMOS maybe SC5238H
 
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mattp

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Here's a couple of alternatives but they are 2MP. The 2231 is a basic camera, no audio or AI featuures. The 3241 is a step up with audio and basic AI, vehicle and person detection. Both are varifocal. The 2231 is in the $125 range and the 3241 is in the $140 range.

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I own both of those cameras. If I had it to do over again, I'd have never purchased the 2231's. The small amount of extra money to get the AI is much more important.
 

wittaj

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I own both of those cameras. If I had it to do over again, I'd have never purchased the 2231's. The small amount of extra money to get the AI is much more important.
This is a huge statement that cannot be stressed enough to the NOOB. Save and spend the few extra dollars for the AI - it makes all the difference. Also consider the few extra dollars to get the varifocal option if it exists!
 
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