Yes and no.
You want to know about the lens. The link doesn't say much about it.
Google what you want to learn about the lens and CCTV. The basics for any camera lens are the same.
Here is one
link about camera lenses. Once you know about this then the specifications of the lens will make sense.
How to choose a CCTV Camera Lens?
Focal Length
The Focal Length is measured in mm. As a guide:
a short focal length (e.g. 2.5mm) = a wide angle of view
a long focal length (e.g. 16mm) = a narrow angle of view
the smaller the CCD Chip – the narrower the angle of view
Depth of Field
The Depth of View is the distance within which objects in a picture are in focus.
A large Depth of Field means almost all objects in the Field of View are in focus.
A small Depth of Field means only a small section of the Field of View are in Focus.
The following factors can lead to a greater Depth of Field:
- Using a Wide Angle Lens
- High F-Stop
- Using an Auto Iris
- Camera Format
The size of the camera’s CCD image device will affect the angle of view. CCTV Cameras come in different chip sizes – 2/3″, 1/2″, 1/3″ and 1/4″.
F Stop
F Stop or Aperture has 2 measurements. When the lens is fully open (Maximum Aperture / Minimum F-Stop), just before the lens completely closes (Minimum Aperture / Maximum F-Stop).
F Stop – is the lenses ability to gather light depending on the aperture and focal length.
C or CS Mount
The 2 standard cctv camera lens mounts. The difference between the two is simply the distance between the lens and the ccd image sensor. C Mount – 17.5mm CS Mount – 12.5mm
Auto or Manual Iris
For changing light conditions (e.g. cameras positioned outdoors), Auto Iris lenses are needed.
For indoor use manual iris lenses are sufficient as light levels will not vary too much.
Video or Direct Drive
The majority of CCTV Cameras will be able to use both types. Video Drive Lenses contain circuitry which converts video signal from the camera into iris control. Direct Drive Lenses require the cctv camera to contain the circuitry.
CCTV Lens Calculator
For a quick 1/3″ CCD Camera you can work out the lens required using this simple method:
Distance from object multiplied by 4.8, divided by horizontal or vertical area equals the lens required.
d x 4.8 / A = L
e.g.
To focus on an area 5m wide from a camera installed 20m away would be:
20 x 4.8 / 5 = 19.2
So you would need a lens with a focal length of
19.2mm
I personally here used only Grandstream OS boards. You want to know about the OS running on the board.
When purchasing the board you want to see a picture of the GUI access to the camera.
Earlier I mentioned that the OS these days is much like a miniature computer. I have seen too that the higher MP cameras have more memory and can do stuff much faster than the lower MP cameras. Really too there are only a few different OS's and multiple companies using the same OS relabeled.
Here have purchased my camera boards from
Surveillance Security Cameras.
They have two companies on the web with similar names. They have good CS, return policies et al.
They have pinhole in a case IP HD cameras there.
Well it comes down to taking apart the box and looking at the ends of the used CatXX cable. You have to be really careful here.
Might be easier to use little punch down ends in a box on both sides of the wire then inside of the box do your stuff for what you have and what you want. Remember the outside pieces and weather stuff.
Use a keystone jack and a little box to put it in on each side of the cat5xx wire.
