16MM lens can see how far
If it is 135 frame, it is basically to the limit of 8mm (fish eyes), if it is DC, that 16MM is generally equivalent to about 64MM. In fact, as long as a normal lens can be in the infinity focus, that is to say , Infinite location can be achieved - such as a lens in the 64MM focal length can also focus on the sun, that distance far enough?
Monitoring camera is a semiconductor imaging device, with high sensitivity, anti-glare, small distortion, small size, long life, anti-vibration and so on. Surveillance camera security system, the image generation is mainly from the CCD camera, can also be stored out of the charge to change the voltage, with anti-vibration and impact characteristics are widely used.
2.8mm, 3.0mm, 3.5mm, 4mm, 6mm you can create this lens you will be on the textbook
