Camera good enough to monitor cash transactions in a shop
- Thread starter yeahman
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looney2ns
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If he can have audio recording, then this: Review-Dahua Starlight IPC-HDW5231R-ZE 800 meter capable ePOE
If he can't or doesn't want audio then this: Review-Dahua IPC-HDW2231RP-ZS Starlight Camera-Varifocal
If he can't or doesn't want audio then this: Review-Dahua IPC-HDW2231RP-ZS Starlight Camera-Varifocal
I guess a camera with higher resolution is needed?this one looks nice
New DH 4K Starlight HDCVI Camera Smart IR Dome Camera Video Resolution 8MP Built in Mic IP67 Coaxial Camera HAC HFW2802E A-in Surveillance Cameras from Security & Protection on Aliexpress.com | Alibaba Group
don't know if anyone has experience with that camera?
New DH 4K Starlight HDCVI Camera Smart IR Dome Camera Video Resolution 8MP Built in Mic IP67 Coaxial Camera HAC HFW2802E A-in Surveillance Cameras from Security & Protection on Aliexpress.com | Alibaba Group
don't know if anyone has experience with that camera?
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fenderman
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that is not an ip camera.
Since there is lots of light in the shop you can use any dahua 4k ip camera with varifocal - zoom in for best view.
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what are the advantages of varifocal ?
this dahua camera has 6MP but with fixed lens (not sure what is most suitable 3.6mm or 2.8mm):
Original IPC HDW4631C A 6MP Dome Network Camera POE H.265 IR 50m Built in Mic Metal Casing HDW4631C A Multi language with logo-in Surveillance Cameras from Security & Protection on Aliexpress.com | Alibaba Group
or this one
Dahua IPC HFW4631K AS I4 6Mp Stellar Bullet IP Camera H.265 IR120m built in SD Card Audio Alarm interface IP67 POE CCTV Camera-in Surveillance Cameras from Security & Protection on Aliexpress.com | Alibaba Group
so many models ... lol don't know what is most suitable
this dahua camera has 6MP but with fixed lens (not sure what is most suitable 3.6mm or 2.8mm):
Original IPC HDW4631C A 6MP Dome Network Camera POE H.265 IR 50m Built in Mic Metal Casing HDW4631C A Multi language with logo-in Surveillance Cameras from Security & Protection on Aliexpress.com | Alibaba Group
or this one
Dahua IPC HFW4631K AS I4 6Mp Stellar Bullet IP Camera H.265 IR120m built in SD Card Audio Alarm interface IP67 POE CCTV Camera-in Surveillance Cameras from Security & Protection on Aliexpress.com | Alibaba Group
so many models ... lol don't know what is most suitable
fenderman
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Don't buy China region hacked cameras.... Varifocal will allow you to zoom in precisely to get the proper field of view and the most pixels
fenderman
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Check that the model number is available on the dahua international or us site. If it is not it's hacked.... There are a bunch of threads that discuss this.
ok I have been reading a bit more on these region locked/hacked dahua cameras. Apart from not being able to upgrade them, what are the other disadvantages?
If you are not connecting the cameras to the internet, this should not be a problem right?
If you are not connecting the cameras to the internet, this should not be a problem right?
fenderman
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inferior sensors, sometimes inferior casing...but hey, you save a few bux...
If a 2MP starlight zoomed to max (about 12mm) is not enough, even 8MP zoomed the same might not be enough. More zoom is more important than more pixels.
thx for the reply. But the problem is zooming in will cover less "area" ... so more cameras will be needed then
Yup. Consider this.
A U.S. dollar bill is 6.14 " x 2.61".
This picture is 200 pixels wide.
To capture quality similar to that, you would need to capture 400 pixels per foot. According to IPVM Camera Calculator V3 that would require an IPC-HDW2231R-ZS to be no more than 9 feet away, using max zoom. The video frame would cover an area about 4.7 feet wide, so not a lot more than the area immediately around a cash register.
Under ideal circumstances (good lens/focus), an 8 MP camera would let you double that width to about 9.4 feet while still retaining the same quality.
Of course you don't necessarily need 400 pixels per foot either. Less should be able to work too under good lighting and using a fast shutter speed.
A U.S. dollar bill is 6.14 " x 2.61".
This picture is 200 pixels wide.
To capture quality similar to that, you would need to capture 400 pixels per foot. According to IPVM Camera Calculator V3 that would require an IPC-HDW2231R-ZS to be no more than 9 feet away, using max zoom. The video frame would cover an area about 4.7 feet wide, so not a lot more than the area immediately around a cash register.
Under ideal circumstances (good lens/focus), an 8 MP camera would let you double that width to about 9.4 feet while still retaining the same quality.
Of course you don't necessarily need 400 pixels per foot either. Less should be able to work too under good lighting and using a fast shutter speed.
looney2ns
IPCT Contributor
That's the number 1 mistake people make, trying to use to few cameras to cover an area.
When you tried your camera, at what height was it mounted above the counter?
If it was farther then 9ft, you could always lower it some.