Fisheye lens field
| Serial number | Item | Value | 
| 1 | EFL | 3.4 | 
| 2 | F/NO. | 1.7 | 
| 3 | FOV | 156° | 
| 4 | TTL | 22.5 | 
| 5 | Sensor Size | 1/1.8”,1/2”,1/2.3”,1/2.5”,1/2.7”,1/2.8”,1/2.9”,1/3” | 
Fisheye 1/1.8” wide-angle night vision surveillance, the lens has a large angle of view and a wide field of view. The scope of the scene observed from a certain point of view is much larger than that seen by the human eye at the same point of view; the depth of field is long, which can show a considerable range of clarity; it can emphasize the perspective effect of the picture, and is good at exaggerating the foreground and expressing the scene. A sense of distance, which helps to enhance the appeal of the picture.