Can the security cameras see anyone?

General surveillance cameras can see people clearly in good light, but they can't see clearly in bad light. But the surveillance camera with infrared function can see people clearly.

Monitoring camera is a semiconductor imaging device, which has the advantages of high sensitivity, strong light resistance, small distortion, small volume, long life and vibration resistance. In the security system of the surveillance camera.

At present, the image is mainly produced by CCD camera, and the stored charge can also be taken out to change the voltage, which has the characteristics of anti-vibration and impact and is widely used.

When many people choose a lens, the first concern is the clarity of the lens. The purpose of the photo determines what kind of sharp lens is needed. High-priced high-quality lenses are mainly used by professional photographers. If it's just general photography, there's no need to spend a lot of money on expensive and high-quality lenses. In addition, the imaging clarity of the lens is directly related to the aperture size. When a lens is reduced by one or two steps from the maximum aperture, the imaging clarity will be greatly improved.

In backlight photography, halos and light spots will be formed on the screen due to the repeated reflection of strong sunlight or other strong light sources on the mirror. This small part of the light that forms halo and flare will not only be imaged on the screen, but also form random reflection in the mirror, which will reduce the imaging quality. In order to prevent this phenomenon, backlight photography must use a hood. Excellent lens adopts the process of completely preventing halo and glare in the manufacturing process, and the contrast is good even if it is shot in reverse light.