CCTV Cameras Lens Type - CCTV Lens Guide - CCTV Lenses Explained and Comparison How to Select Lens

This Video is CCTV Lenses Explained and Comparison.
Types of Lens 2.8mm,3.6mm,4mm,6mm,12mm up to 50mm above
But it’s important because the lens is such a crucial part of your video surveillance system.
Every lens should create a clear image of the scene for the camera to turn into a video.
Как выбрать объектив, фокусное расстояние и угол обзора видеонаблюдения
Note that different image resolution will also slightly affect the angle of coverage

CCTV Lens Guide: Choosing a Security Camera Lens

Below is a guide we’ve created for the sole purpose of educating you on the various terms that go along with CCTV or security camera lenses. There are a lot of them, far more than are even described below, but it’s important because the lens is such a crucial part of your video surveillance system. Knowing which lens to choose can save you time, money, and will increase the likelihood of capturing exactly what you intend.

If you already know the specs of a particular lens, try it out on our lens calculator to discover the field of view the lens is capable of capturing.

Focal Length (mm)

The focal length (measured in “mm”) of a lens determines how far the camera can see. The most common focal length on security cameras is 3.6mm, which will allow for roughly a 72 degree field of view (FOV described below). This particular focal length works well for residential or small office surveillance applications.

If you can only learn one thing about security camera lenses, you should learn that the bigger the focal length, the farther away it can focus. The smaller the focal length, the wider the field of view.


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