What is a low light camera?

The security industry can be said to be diversified. Each time a different product is born, it is not only the development of a new product and the prospects of the industry, but also the resulting product terms. Video surveillance recently discussed more low-light cameras, what is a low-light camera? Let's talk about it with everyone:
Low-light camera is a surveillance camera that can still take clear images under low light conditions. Illuminance is the brightness of 1 square meter, unit: Lux Lux, simply Lux. The illumination of the security industry is expressed in Lux. 0Lux means that you can shoot without light. Normally, most cameras are at 0Lux or 0.1Lux. The value of the illuminance value depends on the aperture size (F value) of the lens. The smaller the F value, the lower the illuminance required. Generally, in the industry, how low the illumination can be depends not only on the aperture (F-number) of the lens, but also on the conditions under which the indicated LUX value can appear. Otherwise, it will only flow on the digital surface without any practical significance. . In terms of the aperture size (F value), the larger the aperture, the smaller the F value it represents and the lower the required illumination.
Low-light camera Minimum illumination level: 0.1 Lux: dark light level; 0.01 Lux: Moonlight level 0.001 Lux and below: Starlight level, generally divided into these three types.

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