What kind of surveillance camera is good
The aperture is large, the image will be relatively clear), the aperture (the greater the aperture, the lower the light the better the imaging effect), if no lights at night, then the infrared function, you do not have to consider the PTZ. According to these parameters to sell security shop can buy the right
The performance of the camera is mainly the minimum illumination (that is, the ability to adapt to the dark light), focal length (according to your workshop to install the camera position and to monitor the range of fixed focus, the shorter the shorter the focal length of the larger image is not very clear
According to your workshop size 8mm focal length, CCD1 / 3 inch camera almost, other parameters of course, the higher the better, but the price is higher, better international brand cameras have sony, Panasonic, Sharp, WATEC, etc. With the small, Shenzhen Weizi seems okay; I use the WATEC with 8mm, computar lens, the effect is good, the price of your side, a set of about 2800
