Any good resources to educate myself on cameras?

[bkwashpa 0]

First, I work in IT, but cameras are new to me. I'd like to expand and learn more about these and possibly start installing/selling them. Last year I purchased a Lorex system for my uncle. Never again. 3 of the cameras are out and the DVR quit working. I'm looking for myself, so that experience has me a little cautious. I need approx 4 cameras. Would like one high quality PTZ for the front of my house and bullet cams are fine with the rest. Would like IP cams so I can wire these into my server rack and run to a PoE switch. Like to have access via smartphone and maybe run off of a QNAP NAS?

 

I found this camera...

https://www.supercircuits.com/alibi-1080p-hd-23x-zoom-ip-ptz-ali-np7012rt?utm_source=youtube&utm_medium=social&utm_campaign=CamerasInAction

 

Digging the night time viewing distance and zoom.

 

Anyways, any suggestions on where I can learn about the specs of the cameras and what is good?

 

Hoping I get a response. I see many people post asking for help and never get a response.

 

Where did you all learn CCTV systems?

[tomcctv 190]

$1.500 for a 2mp PTZ Look on eBay Texas $500 for the same PTZ