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Speaking about decision considerations when selecting a lens for CCTV cameras, there are several varieties of lenses, which are effective and distinctive at the same time. Fixed Focal Length Lenses and Fisheye Lenses are two common kinds of lenses implemented in CCTV cameras. What exactly do these lenses do? Which kind do you need? Here in this blog post, we get down to the nitty-gritty of every lens type.

Fixed Focal Length Lens

As the name suggests a Fixed Focal Length Lens or prime lens has a fixed focal length and cannot be varied. In other words, what this means is that the lens provides a certain degree of coverage and the feature of the zoom is not relevant for this camera. Fixed Focal Length Lenses come in different focal lengths; these can range from 2. They range from as small as 8mm to 50mm and even more.

Thus the main benefit that may be derived from the use of Fixed Focal Length Lenses is the one that is mainly associated with its capacity to offer a distortion free image. Because the lens is designed for a particular focal length, the developed image is much better and sharper than in the case of varifocal lenses. Furthermore, Fixed Focal Length Lenses are thought of as relatively cheaper products compared to varifocal lenses, hence, more suitable for numerous surveillance applications.

Fixed Focal Length Lenses are ideal for applications where the camera's position and field of view are fixed, such as Fixed Focal Length Lenses are ideal for applications where the camera's position and field of view are fixed, such as:

Supervising a certain section of the store such as the area with the cash register, or the door.

Surveys a limited area of vision, such as a hall and or a passage.

Ensuring that it delivers a high quality image in such environments that are characterized by low lighting.

Fisheye Lens

A Fisheye Lens has an ultra-wide focal range, sometimes as wide as 180 to 360 degrees. This lens design makes it possible for it to capture a large area as compared to other lenses which makes it suitable for use where there is a need for a large field view.

The first obvious benefit of using Fisheye Lens For CCTV Camera is that the camera will be able to capture a very large area of coverage with ease. This can be particularly useful in applications such as:

Surveillance of light and rather deserted places, for example, parking lots or territories.

Giving an overall picture of a room or a building

Censored for motion and tracking objects within a large coverage area

However, there are a few shortcomings of Fisheye Lenses as well. There are drawbacks to the extremely low FAOV and its major drawback is that it causes a high level of distortion especially in the peripheral regions of a viewed scene. Furthermore, firmware for most Fisheye Lenses might be needed to use the lens or to request dewarping algorithms to make the image intelligible.

CCTV cameras are very efficient in offering security and surveillance to a home or establishment since they capture images and videos of people and properties within the area being monitored.

Hence, the lens to be used on the CCTV camera should be chosen depending on the needs of the specific surveillance job at hand. If you need a sharp and clear image without distortion or the ability to change the focal length, this might be the solution for you – a Fixed Focal Length Lens. Nonetheless, in case you need a rather broad field of vision and it is unimportant for you that the images will be distorted, you can utilize a Fisheye Lens.

In Fixed Focal Length Lenses, we at Superior CCTV have a variety to suit the different functions of surveillance while in Fisheye Lenses we have what you need. Our team is comprised of experienced technical personnel who can guide you through the selection of the right lens/ lenses that will meet the image quality and the coverage you desire in your Closed Circuit Television Camera. Give us a call today for more information on lenses and how you can get amazing surveillance solutions.