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night cameras, as they are able to capture color images in both daytime and low-lux conditions. Generally speaking, low lux can reach 0.1 lux in color mode and 0.01 lux in black/white mode. IR illuminators providing near-IR light can be used in conjunction in 0 lux conditions, but these are generally not listed as part of the low-light, color-mode specifications. Most of these type of cameras utilize Ex-view-HAD technology, which are capable of performing in conditions of

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up to 0.01to 0.001 lux. Such cameras are not only able to capture clear images, but are also able to limit noise levels in color images taken under low-lux conditions, without the need to reduce shutter speed or increase iris diameter. Hence, they are considered to be capable of achieving low-lux surveillance.

Most Convenient: Day/Night Mode Cameras featuring day/night modes use mechanical principals and are gradually

FEB 2014

becoming more common on the market. Most day/night cameras are labeled as colored 0.1 lux and IRC on black/white 0.01 to 0.001lux. It should be noted that since 0 lux does not really mean anything in this context, therefore, no special explanation of it is needed for low-light nighttime application. These cameras make use of near-IR light to deliver black and white images when light is reduced to a certain level — the camera switches to IR cut or to black/white mode after sensing the

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