Dahua camera/NVR setup.

Recoil

n3wb
Apr 6, 2017
2
0
Hi folks, I am planning on adding cameras to my home I am hoping you could tell me if I am making the right choice.
I like to install 4 180 degree cameras in each side of the house, would this be a good idea or is it against best practices?
I am looking to installing 4- Dahua IPC-PFW3849S-A180-AS-PV connected to a Dahua NVR NVR5208-8P-XI.
Does this sounds like a good solution? Thank you.
 
They are likely the wrong choice.

The 180 cameras make great overview cameras, but poor IDENTIFY cameras.

One camera cannot be the be all, see all, do all. You need the correct focal length for the distance you are looking for.

As far as cameras, without knowing what your goals of the camera is, this thread is used as the go to for the new person here outlining the commonly recommended cameras (along with Amazon links) based on distance to IDENTIFY that represent the overall best value/best bang for the buck in terms of price and performance day and night. It might be a 2MP camera in some instances.

The Importance of Focal Length over MP in camera selection

And coupled with that thread is this great thread which will show why all of the same 2.8 or 3.6mm cameras is the wrong choice:

i-want-2-8mm-cameras-everywhere-to-see-everything-this-is-why-you-need-specific-fovs-with-purposeful-focal-lengths.70053/

We would encourage you to look at those threads in detail.

It will probably raise more questions than answers LOL.
 
To be honest it is really hard to tell someone what they should or should not use. Everyone has different needs or wants.. But to give you an idea of why 1 camera can't do the same thing as all I will post 3 pictures. First one is from a 4mp with good sensor and f/stop for a 4mp camera. The second picture is of another camera that is 2mp and has a 5mm x 50mm lens. It covers a part of the other cameras FOV but the first cameras AOI is really in the front of the camera.. Anyway in the second picture I have that camera at the 5mm setting and in the 3rd picture is of the second camera but have it zoomed into what I want for its AOI so I can capture plates and have better view of people that are walking by.. For your NVR great NVR, Cameras if you are looking to ID someone that is going to be in the cameras FOV within 16 feet then the cameras will work fine. If you are going to mount and just want to know when someone is coming onto your property and don't care if you can ID them the cameras will work fine.. Everyone don't have to have costly cameras with great Sensor to MP as some people will just set and forget the camera system and only use to see what happened after the fact..

FOV=Feild of View
AOI=Area of Interst
 

Attachments

  • Screenshot (89).png
    Screenshot (89).png
    3.1 MB · Views: 0
  • Screenshot (90).png
    Screenshot (90).png
    1.9 MB · Views: 0
  • Screenshot (91).png
    Screenshot (91).png
    2 MB · Views: 0
Thank you very much guys I do appreciate all of your input.
Lots of things to consider, like Wittaj said I'll have more questions :)
Anyhow I am going to put your comments into practice and rethink what I am doing.
Once more thank you!