1) it is recommended that you not mix camera and NVR manufactures. So keep your cameras Hikvision.
2) What model cameras do you have ?
3) a picture of the front of your house and the drive way would help.
1950 is not old, there are a number of members that are older than than that. I am 1948.
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a couple of notes from my normal very long greeting message
Cameras are for surveillance to get information for after the fact.
Please read the
IP Cam Talk Cliff Notes and other items in the
IP Cam Talk Wiki. (read on a real computer, not a phone). The
wiki is in the blue bar at the top of the page.
Read
How to Secure Your Network (Don't Get Hacked!) in the wiki also.
2) Use Hikvision darkfighter cameras if you need good low light cameras.
4) Do not use wifi cameras.
7) More megapixel is not necessarily better.
10) If possible use a turret camera , bullet collect spiders, dome collect dirt and reflect light (IR)
11) Use only solid copper, AWG 23 or 24 ethernet wire. , no CCA (Copper Clad Aluminum)
12) use a test mount to verify the camera mount location.
My test rig: rev.2
17) Camera Sensor size, bigger is general better
Sensor Size Chart
18) Camera lens size, a bigger number give more range but less field of view.
Which Security Camera Lens Size Should I Buy?