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The other important aspect that relates to surveillance system installation is a camera lens and here’s why. The kind of lens to be installed may affect the quality of the captured video, the area to be covered and the efficiency of the system installed. So, to take it down to business in this blog, we will emphasize the contrast between the normal Surveillance Camera Lens and the CCTV Camera varifocal lens.

Standard Surveillance Camera Lens

A typical Surveillance Camera Lens is created to have a fixed focal length and this makes it possible for the lens to capture only a given area of view. These lenses are normally applied in those scenarios where the camera is placed in a fixed position such as on a door or corner. The advantages of a standard surveillance camera lens include:

Cost-effectiveness: Standard lenses are normally cheaper than varifocal lenses and therefore are ideal for small to medium surveillance systems.

Ease of installation: As previously discussed standard lenses are easier to fit because no changes have to be made to the focal length of the lens.

Fixed area of view: Standard lenses offer a fixed view of the world, which in some cases is useful in surveillance, for example, when the camera or the system is observing a certain area, say a cash desk or a door.

Nevertheless, fixed lenses of standard surveillance cameras have some weaknesses as well. They can only capture fixed areas of view which might not be good for larger regions or applications that require the devices to turn at various angles.

CCTV Camera Varifocal Lens

Then, there is the CCTV camera varifocal lens which offers a much more flexible and convenient approach to the entire affair. They are used for changing the focal distance and thus, the range of the field of vision can be adjusted according to a certain situation. The advantages of a CCTV camera varifocal lens include:

Flexibility: Variable focal length is available in varifocal lenses which are suitable in a setup that involves monitoring of large region or multiple regions of interest.

Customization: Varifocal lenses enable the user to change the field of vision and make it suitable for the particular surveillance activities to be undertaken.
Improved image quality: Varifocal lenses can give better quality images as they consist of the ability to move the lens forward or backward to enhance the focal length and zoom.

But at the same time, CCTV camera varifocal lenses also possess certain disadvantages. They are usually more costly than normal lenses since they demand technicalities in installation as well as refinements.

Key Differences

Realizing this, what, then, are some of the main distinctions between a normal surveillance camera lens and a CCTV camera varifocal lens?

Focal length: Non-varifocal lenses are of a single fixed focal length whereas varifocal lenses possess the capability of being changed.

Area of view: There is the fixed type of lens and the varifocal lens which give a changeable area of view.

Cost: In terms of value, it can be noted that standard lenses are usually cheaper than varifocal lenses.

Installation: While there are no big differences in the overall structure, installation of the standard lenses is easier and the installation of varifocal lenses entails more work and modification.

Therefore one can conclude that regarding the lens of the surveillance camera, the most important factor to consider is the needs of the surveillance system in question. If you need to have a specific viewing angle and at the same time are willing to save money then a standard Surveillance Camera Lens can come in handy. But, if you want a solution that is far more versatile and customizable, you will need a CCTV Camera Varifocal Lens. With the knowledge of the differences in basic lenses, one can make the right decision and guarantee that the surveillance system will give a high-definition picture and efficient monitoring.