Protecting manufacturing skills has become more imperative than ever in today’s industrial landscape. Furthermore, with expensive equipment, critical data at risk, and sensitive materials, Superiority CCTV plays a crucial role in ensuring protection, preventing unauthorized access, and overseeing operations. Nevertheless, selecting the right Industrial Surveillance CCTV lens manufacturers requires careful planning to address the specific demands of a manufacturing environment.
Furthermore, in this comprehensive blog, we will take you through everything you require to know precisely about choosing the appropriate Industrial Security high resolution lenses. Additionally, we will discuss why the Superior CCTV’s wide camera range makes it the best choice.
What are the Types of CCTV Camera Lenses?
According to their ability to adjust the focal length, CCTV security camera lenses are divided into two major types. Let’s discuss:
1. Focal Lens
In a fixed eyepiece lens CCTV security camera, the focal length is fixed, meaning the field of view is also fixed and cannot be adjusted once the camera is mounted. Additionally, the size of the image will always remain the same, regardless of the object’s distance from the camera.
Two Categories of Focal Lens
a. Wide-Angle Lens
A wide-angle lens is one with a short focal length, allowing it to capture a wider field of view than a standard lens. Generally, security cameras with a 2.8mm lens are considered wide-angle cameras, as they offer a wide view angle of approximately 100°. There is also another type of wide-angle camera that uses dual lenses to provide a 180° broad view.
b. Telephoto Lens
On the other hand, telephoto lenses have longer focal lengths and are designed to capture subjects at a distance with exceptional detail and clarity. They are often used for keeping watch over narrow spaces, such as corridors.
2. Varifocal Lens
Varifocal lens security cameras allow you to adjust the focal length according to your specific requirements. You can zoom in for a closer view and more information, or zoom out for a broader view of the place. Varifocal lenses, such as those used in a UV camera lens, are generally more expensive than fixed lenses due to this innovative feature.
Two Categories of Varifocal Lens
a. Manual Zoom Lens
A manual zoom lens is a type of camera lens in which the photographer manually turns a ring on the lens barrel to adjust the focal length and zoom in or out, as opposed to a motorized or automatic system. CCTV camera varifocal lenses provide customers with complete control over framing, which is ideal for applications such as street photography, macro, wildlife, and film, giving a physical feel and subtle adjustments that automated systems cannot reproduce.
b. Motorized Zoom Lens
A motorized zoom lens features an electric motor within the lens that is controlled by buttons or a remote control to adjust the lens’s focal length and zoom in or out on an image. Furthermore, it provides remote, smooth, and accurate control suitable for videography, surveillance, and machine vision systems where manual adjustments are impossible or inconvenient.
CCTV Lens Types Comparison Table
| Lens Type | Focal Length | Field of View | Best For | Cost |
|---|---|---|---|---|
| Fixed | Fixed (e.g., 2.8mm or 4mm) | Wide (depends on mm) | Indoor monitoring with a consistent view | Lower |
| Wide-Angle Lens | Short focal length (2.8mm typical) | ~100° or up to 180° (dual) | Large open areas, parking lots, and manufacturing floors | Moderate |
| Telephoto Lens | Long focal length (e.g., 12mm or 50mm) | Narrow but very detailed | Corridors, gates, long distances | Moderate–High |
| Varifocal Lens | Adjustable (e.g., 2.8–12mm) | Variable (zoom in/out) | Flexible surveillance setups | Higher |
| Manual Zoom Lens | Adjusted manually | Variable | Areas needing occasional re-framing | Moderate |
| Motorized Zoom Lens | Remote-controlled electric motor | Variable | Large or inaccessible areas, frequent re-framing | High |
How to Choose a Security Camera Lens?
When selecting the right CCTV camera varifocal lenses, numerous key elements must be considered before making a purchase.
1. Focal Length
The security camera lens size, or focal length, refers to the distance between the center of the lens and the point where light rays from an object converge, measured in millimeters (mm). Moreover, it is a significant term related to camera lenses that influences the field of view. In brief, the shorter the focal length of the security camera lens, the larger the area you can view, but with less detail. Furthermore, the higher the focal length, the more distant you can view, but with a narrower field of view.
2. Aperture
Aperture is the measurement of the opening size through which light will pass, and it is taken in F-stops as values rise or fall. Something to remember is that a low f-stop number indicates a large aperture. For instance, F1.4 is a large aperture that allows more light to enter the camera.
Moreover, the aperture is a crucial term for high resolution lenses, as it affects the depth of field, which is the distance between the closest and most distant objects in a scene that are in focus in an image. Likewise, the thin aperture corresponds to an enormous depth of field, which allows for the capture of more objects in focus.
3. Iris
The iris adjusts the amount of light passing through the aperture of a lens. If the iris is set to produce a large opening, more light will pass through. Additionally, it is not necessarily true that the larger the iris, the better the images you can capture. Too much light will blur your video, and too little light will result in a dark scene. For this reason, you need to choose an appropriate iris type that suits your specific needs.
The manual and fixed iris eyepiece lens is commonly used in indoor settings where the light remains stable, such as offices, schools, or stores. Nevertheless, the auto iris lens can adjust automatically to changes in light and is suitable for outdoor settings that experience varying light conditions.
4. Camera Format
When considering the listed specifications of security camera lenses, you will see figures such as 1/2″, 1/3″, 2/3″, and 1/4″ for the image sensors. Typically, the smaller the image sensor, the smaller the field of view of the security camera. For instance, a 2/3″ image sensor will have a wider view than a 1/3″ one.
That is the format size of security cameras we are discussing here. For example, for lens format size, understand that the lens’s image format, “2/3 inch image format”, is the utmost size it can accommodate. Moreover, when planning to buy CCTV lenses from CCTV lens manufacturers, be sure to re-double-check the format size of both security cameras and lenses, and adhere to the above rule to achieve a super shot.
5. C or CS Mount
C and CS mounts are two options for mounting a lens onto a CCTV security camera. Their differences focus on the distance between the lens and the image sensor. For C Mount, the distance is 17.5 mm, while that for CS Mount is 12.5 mm. When selecting a lens for security cameras, verify that both the camera and lens are compatible with either C-mount or CS-mount. A lack of a corresponding lens may be the cause of poor image quality from security cameras.
It’s Time to Conclude Here!
Before purchasing the right CCTV camera lens, ensure that you gain a thorough understanding. Furthermore, selecting the ideal CCTV camera lens system involves evaluating key elements, including camera options, security risks, future scalability, storage solutions, and other factors. With Superior CCTV, one of the CCTV lens manufacturers, you gain strong security, cost-efficient monitoring, and effortless integration to meet your facility’s needs. Furthermore, we offer dependable and scalable CCTV solutions tailored to meet the specific needs of industrial environments. So, what are you waiting for? It’s time to purchase the ideal CCTV cameras for your space without breaking your budget!