What are the differences between various camera lenses?
  Loading... Please wait...
  • Gift Certificates
  • My Account 


felix_dpd_shipping 3_years_warranty dahua

What are the differences between various camera lenses?

What are the differences between various camera lenses?

What are the differences between various camera lenses?

The focal length of a camera lens is measured in millimetres (mm): 3.6mm, 12mm, and so forth. The number indicates the angle of view of a camera. For instance, a camera with a 3.6mm lens will cover the angle of view of approximately 75 degrees.

There are also cameras with a varifocal lens, for example 2.8 to 12mm. They allow to change the area of view of the camera by zooming in or out (zooming is usually achieved by manually manipulating the body of the camera).

The size of lens determines how much of the area the surveillance camera will be able to cover. Our camera lenses range from 2.8mm to 12mm in size.

A bigger lens will have a smaller / narrower angle of view and display a closer image of the object or area under surveillance.

The approximate angle of view of different lens sizes:

3.6mm – 72 degrees.

6mm – 43 degrees.

4-9mm – 62-33 degrees.

2.8-12mm – 81-22 degrees.

Below is an example of how different sized lenses display the same image:







Securitycam24.com is specialized cctv equipment online store. In our product range you will find wide range of security cameras and cctv accessories as well as spy cameras, action cameras, wildlife cameras, alarm systems and similar products. Installing cctv camera system in some cases might be very easy, therefore we offer wide range of complete DIY security camera systems prepared to install without professional installers' help. It is very important to choose the right cctv camera to get the best performance under specific conditions, therefore if you have any questions regarding any cctv camera system or any particular surveillance camera, please contact our professional support team. In order to make it easier for you to choose the right surveillance camera, we have prepared a FAQ section, where you will find answers to the most common questions as well as explainer videos and illustrations about CCTV. If you have already ordered security cameras but have some questions about configuration or installation - we are here to help. We will provide you with detailed instructions on how to to prepare your security camera system or camera for work. If you cannot find your desired security camera system or other CCTV system item in our online store please contact our customer support and we will check if this product is available in our warehouse. All our products are genuine and come with manufacturer’s warranty for good price.

Copyright 2019 securitycam24.com. All Rights Reserved
Sitemap |