Moving and almost bought a box system till i found this fourm

NJAT4

n3wb
Joined
Mar 20, 2022
Messages
1
Reaction score
2
Location
New Jersey
As the title suggests, I am moving and almost bought a Lorex plug-and-play system. The system I have now is an older Swann system, did the job on my little house. I am looking for a quality build from the ground up. I did some researching on here, are there any forums with breakdowns for everything needed from the switch to the computer to the cameras. Looking for a 6-8 camera system.

Thanks!
 

sebastiantombs

Known around here
Joined
Dec 28, 2019
Messages
11,503
Reaction score
27,709
Location
New Jersey
:welcome:

First you need to decide if you want to use Blue Iris or an NVR. An NVR basically "locks" you in to using the same brand cameras to match the NVR while Blue Iris lets you use just about any camera other than a bunch of crappy cloud based proprietary cameras. Neither is true "plug and play" and they both need tuning to get the most out of them. Blue Iris is very flexible but that comes with the price of a steep learning curve to figure it all out. Both are in the same price range if you use a refurbished commercial PC for Blue Iris. You can also download the demo version of blue Iris and use it for 15 days, I think, to try it out.

Then you need to decide what you want your system to actually do. Do you just want pretty overview video or do you want to know who did what and when? Those two things determine focal lengths of the cameras. The general suggestion is to buy on good varifocal camera and use it to test every location you think you might want to put a camera. The focal length can be adjusted and there is a converter to produce an approximation for a fixed focal length lens. Night performance is usually a key factor as well. Don't chase megapixels, chase sensor size. There's a chart listed below for comparisons of optimal sensor size versus resolution. Remember sensor sizes are fractional and therefor are inversely proportional.

Read the Cliff Notes in the Wiki, in the blue bar at the top of the page. Lots of great information there to help you design and build a system. Once you decie on your real objectives it will get easier and you can ask questions here for the details.

The three basic rules of video surveillance cameras-

Rule #1 - Cameras multiply like rabbits.
Rule #2 - Cameras are more addictive than drugs.
Rule #3 - You never have enough cameras.

Quick guide -

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.

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)

Don't believe all the marketing hype no matter who makes the camera. Don't believe those nice night time captures they all use. Look for videos, with motion, to determine low light performance. Any camera can be made to "see" color at night if the exposure time is long enough, as in half a second or longer. Rule of thumb, the shutter speed needs to be at 1/60 or higher to get night video without blurring.

Read the reviews here, most include both still shots and video.

Avoid Reolink, Foscam, SV3C, Nest, and all the other consumer grade cameras. They all struggle mightily at night and never get anything useful on video. Here's a link to a whole thread debunking Reolink in particular.

Compiled by mat200 -

Avoid WiFi cameras, even doorbell cameras. WiFi is not designed for the constant, 24/7, load of video that a surveillance camera produces. At best, with two cameras on WiFi, they will still experience dropouts multiple times daily. Murphy's Law says that will happen at the worst possible moment.

Lens size, focal length, is another critical factor. Many people like the wide, sweeping, views of a 2.8mm lens but be aware that identification is problematic with a lens that wide. Keep in mind that it may take two cameras, or more, to provide the coverage you need or desire. Another factor that effects view angles is the sensor size. Typically larger sensors will have a larger field of view in any given lens size.

The 5442 series of cameras by Dahua is the current "king of the hill". They are 4MP and capable of color with some ambient light at night. The 2231 series is a less expensive alternative in 2MP and does not have audio capabilities, no built in microphone, but is easier on the budget. The 3241T-ZAS has similar spcs as the 2231 and has audio. There are also cameras available from the IPCT Store right here on the forum and from Nelly's Security who has a thread in the vendors section.

Review - 8MP 1/1.2" sensor full color camera


5442 Reviews

Review - Loryata (Dahua OEM) IPC-T5442T-ZE varifocal Turret

Review - OEM IPC-B5442E-ZE 4MP AI Varifocal Bullet Camera With Starlight+

Review-OEM 4mp AI Cam IPC-T5442TM-AS Starlight+ Turret

Review IPC-T5442TM-AS-LED (Turret, Full Color, Starlight+)

Review: IPC-HDBW5442R-ASE-NI - Dahua Technology Pro AI Bullet Network Camera

2231 Review
Review-OEM IPC-T2231RP-ZS 2mp Varifocal Turret Starlight Camera

3241T-ZAS Review

Less expensive models -

VPN Information Thread

Dual NIC set up
 
Top