WrityWall Blog Technology Types of Security Cameras And The Functionality

Types of Security Cameras And The Functionality

With the changing social norms and human behavior, the security threats have increase too massive. Because of this change globally, security camera installation becomes a necessity of living a safe life.

Yes, there will be a confusion as to which camera will work the best for your home, office, warehouse or any other building that you want to monitor. To help you in this, I have planned to write a blog post that will elaborate about the different types of cameras available in the market, what their purposes/advantages and disadvantages are as well.

Fixed Security Cameras

Application: Fixed security cameras do not let you adjust the focal length, angle view or adjust the zoom level. They stay in a position as mounted at the time of security camera installation San Bernardino CA. Such cameras are used in the areas where you don’t need to adjust the focus every time.


They are popular among the users for their effortless installation and management. Also, they are of low cost and less complicated to operate. All you need is to call an expert for security camera installation in Bernardino CA and you are set to record the happenings around.


One major disadvantage of this type of camera is that you cannot cover the bigger picture. Also. the only way you can enlarge any recorded footage is to zoom digitally. Obviously, it will cost you pixelation at a lower megapixel rating.

Varifocal Lens

Varifocal lens lets you adjust the focal length manually which means you can manually select the horizontal views as well. Allowing you to focus on a specific area of interest by reducing the field of view. We’ll talk about motorized varifocal lenses in the next section.


Let’s you manually control the lens adjustment. You can set it according to your recording needs. The only restriction you will be facing is of the megapixel.


Well, with the leverage of having control over the lens, one disadvantage is that you have to manually take off the lens in order to adjust it as per need of desired focal length.

Motorized Varifocal Lens

Referred to as a zoom lens. These are the motorized lenses that make it easy to operate with user interface especially while using any video management software.


It is common for zoom lenses to have a larger adjustment range than varifocal lenses. The next best thing to a PTZ camera is a zoom or a motorized varifocal lens, but it is typically less expensive.


However, it is a little more expensive than the manual varifocal lenses. The biggest disadvantage still lies here that the cameras do not move themselves but only the lens.

PTZ or Pan-Tilt-Zoom

A remote operator or software applications can be used to adjust the field of view of a PTZ or Pan-Tilt-Zoom security camera to track movement or people. They can pan, tilt, zoom and track specific subjects in real-time with these top-tier cameras.


One big advantage of having PTZ Cameras is that it covers 360-degrees of area. Moreover, these devices are designed to respond intruders. They can settle to autopilot mood. 


These are one of the most expensive gadgets you will have in your collection. Where the camera allows you to cover 360 rotations, you may also need to attach a fixed lens camera to capture moments for clarity.

These cameras have complex structures and often become difficult to operate. Or if mishandled, you may need to call professional CCTV system repair services.

Bullet Security Cameras

A shoebox camera is one of the most common types of cameras.


Different designs, sizes, and uses exist for bullet cameras. The ability to monitor specific areas is made easier with the use of fixed security cameras. Many cameras have interchangeable lenses that allow for both narrow and wide-angle shots, depending on the lens.


Because of the lens’s obvious placement, these commonly overt cameras can’t hide in which direction they’re focusing. It’s simple to misdirect or tamper with them if they’re nearby.

Virtual PTZ Cameras

Like a traditional PTZ, virtual PTZ users can use their recording software to pan, tilt, or zoom in on particular subjects. Even if you manually zoom in on a specific target, virtual PTZ cameras record all angles of video captured by the lenses even if you’re manually zooming in.


They are your perfect partner when you need to cover a large area. These are known for recording 360 rotations.


Well, here comes the technology part. The functionality and efficiency totally depend on the software installed in them. So, while making a purchase you have to look at them too.


Such cameras give you an option to choose between fixed and motorized lenses. These are used in outdoor as well indoor settings.


They are designed in a way that are protected from redirection and defocusing.


Despite having a motorized functionality, they give you very little flexibility in lens rotation and megapixel rating.

Exit mobile version