The full name of CCTV lens is closed circuit television lens. In other words, CCTV lens is lens used by closed-circuit television. It can also be called surveillance camera lenses or security camera lens. Originally used in video surveillance camera, CCTV lens, generally with C bayonet, has characteristics of large aperture.
F1.0 CCTV Lens and 2.8mm CCTV Lens provided by TeSoo Optoelectronic are especially popular among our customers. F1.0 CCTV Lens is 4mm F1.0 statlight lens, with large aperture for dark environment. Our 2.8mm angle of view CCTV Lens, widely used in automotive products such as car rear view camera and car recorder, boasts of wide view angle. These two CCTV lens, with stable image quality, are very cost effective and worth trying.
TeSoo Optoelectronic, as one of the best CCTV lens manufacturers, offers a unique balance of optical quality for your CCTV cameras with high quality security camera lens. A wide range of CCTV lens types such as 6mm lens field of view are available to select and do feel free to contact us for further information of CCTV lens price. It is our great pleasure to assist you in surveillance system development.
Tesoo CCTV Camera Lens Types
What Is A CCTV Lens?
When it comes to CCTV lenses, we usually relate them with CCTV or camera system. As an attachment for the system, CCTV lens not only extends the focal length of a camera, but also amplify its angle of field. CCTV camera lenses provided by TeSoo Optoelectronic, one of the biggest CCTV lens suppliers, is easy to mount and maintain, bringing greater security to both industrial and residential areas of the lens used in camera. What's more, there is no need for you to worry about any distortion or color defects of our high quality CCTV lenses.
Tesoo CCTV Lens Application
CCTV lenses are also known as CCTV camera lenses, security camera lenses, surveillance camera lenses, ect... They are widely used in indoor and outdoor applications as a main purpose of surveillance. When used in indoor applications, the lens CCTV can be assembled in IP camera, baby monitor, smarthome surveillance system, video doorbell, etc... Among these applications, CCTV lens manufactuers tend to adopt CCTV lens types with small mount, such as M12 lens and 8mm CCTV lens. When used in outdoor applications, CCTV lenses can be used in bullet camera, dome camera, ITS applications,etc... Under such occasions, customers tend to choose lenses equipped with IP rating for waterproof funcation and for hash environment. What's more, CCTV camera wide angle lens, varifocal lenses, CS mount lenses, C mount lenses are more popular in outdoor applications.
How to clean CCTV security camera lenses?
As we know that CCTV security camera lens is a precise optical compnent. So how could we clean CCTV security camera lens in an appropriate way without damaging the lens optical performance? If the dirt on CCTV security camera lenses is particles, adopting ultrasonic cleaning machine would be an ideal way. When there's no untrasonic machine at hand, adopting an air cleaning gun is also a feasible solution. If the dirt on a 4.5 mm lens is not able to blown off, then you can use a glass wiper to clean the CCTV lens surface. It would be better not to use too much alcohol when cleaning the glass and put the glass in alcohol for too long, because there's optical coating on the CCTV camera lens surface, and putting the lens in alcohol for too long may damage the its coating.
Which Lens Is Used In CCTV Camera?
CCTV lens is the lens used in CCTV camera, mainly including fixed lens and varifocal lens. Contact TeSoo for more CCTV camera lens types/price.
Fixed CCTV Lens And Varifocal CCTV Lens
Users are not allowed to change the focal length of CCTV camera with fixed lens. Its field of view and level of zoom is also unchangeable. While CCTV camera with a varifocal lens is not permanently set, or rather, its focal length, level of zoom, as well as its angle of view are adjustable. The lens can either zoom in for details or zoom out for a panorama view. Generally, fixed CCTV lens is suitable for home, while motorized varifocal lens is more for business use.
How to choose CCTV camera lenses?
Sometimes CCTV camera customers tend to get confused when there're so many different CCTV lens types. How to pick up the most satisfied CCTV lens from the lens ocean seems like a challenge. Here are some tips for selecting the suitable lenses quickly.
Scenario 1
If the sensor used to match with CCTV lens has been fixed, you may choose the lens based on lens sensor size or judge by lens max image circle. In order to make the most of the sensor, take pixel numbers and pixel size of sensor into consideration is also an important point. Regarding this aspect, it's better to communicate with CCTV lens suppliers, since this standard is variable according to CCTV lens manufactuers and testing process.
Scenario 2
If camera lens manufactuers have already fixed their housing size or have specific requiments on lens mechanical size, then the CCTV camera lens can also be sourced by size requirements. Such as TTL, also known as total tracking length（from the surface of the first glass to the sensor image plane), diameter of lens retainer (refers to the lens head size, also called as a cap), mount size (the barrel size, the part usally with screw on it), including M12 mount, M10 mount, M9 mount, M8 mount, M7 mount, M6.5 mount, M6 mount, M5 mount, M2.5 mount, M16 mount, C mount, CS mount, etc...
Scenario 3
Select by applications and functions, such as waterproof security camera lenses, large aperture lens with small F. No. for dark environment, high reliability lens for hash enviroment, such as high temperture environment, big vibration environment, ect...
Different Security Camera Lens Size Comparison
EFL which stands for effective focal length, is a siginificant parameter when security camera manufactuers choose a lens. 2.8mm lens, 4mm lens, 3.6mm lens and 6mm lens that we usually mention all refer to CCTV camera lenses with EFL 2.8mm, 4mm, 3.6mm and 6mm. These four types of EFL are the most common types used in CCTV camera applications. Now, how do we know the difference among these lenses and confirm which CCTV lens is exactly the one we are looking for?
What is the difference between 2.8mm and 4mm CCTV lens?
2.8mm S mount lens is a wide angle lens, witch is more commonly used in occasions requires image in wide view and close range. While 4mm lens angle of view usually shows a view angle around 95 degree with appropriate range, which is one of the most popular lens used in CCTV camera applications.
What is the difference between 3.6mm and 6mm CCTV camera lenses?
3.6mm lens is quite similar to 4mm lens, which are with similar FOV(field of view) and shooting range. 6mm lens are usually with a narrower view angle (most of them are around 65 degree). It's able to shoting in further distance with quite small optical disortion.
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