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Lens Classification Of Surveillance Camera

Lens are the eyes of surveillance camera, and they are essential part to get high-definition images. So this article focus on how to identify a variety of lens types.

Lens Classification Of Surveillance Camera

Before the monitoring engineering design and planning, as the the lens are very important, you should find out the type of lens and its application, and understand the characteristics of its application in order to get the best image. Under the current domestic classification, the lens can be divided into the following ten types.

· Fixed aperture lens: they are mainly used for fixed place of ambient light with fixed focus and fixed aperture;
· Manual aperture lens: they are mainly used for fixed ambient light but uncertain bright places with fixed focus but adjustable aperture;
· Auto-aperture lens (DC-drive): fixed focal length. They are the used for a fixed range of places with light changes driven by DC voltage;
· Auto-aperture lens (Video-drive): fixed focal length. They are the used for a fixed range of places with light changes driven by video signals;
· Manual aperture zoom lens: they are mainly used for the indoor environment of varying degrees of light and varying size of the place;
·  Auto aperture zoom lens: they are mainly used for the indoor environment of varying degrees of light and varying size of the place;
· Board lens (on-Board): they are mainly matched with the infrared camera and applicable both indoor and outdoor;
· Fisheye panoramic lens: they are mainly used for indoor environment with unfixed light range but specific location;
· Electric zoom lens: they can be remote control for focus distance and aperture, mainly for indoor and outdoor environment;
· Pinhole lens (Pin-Hole): they are mainly used for concealed surveillance and specific places.

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