FOV
[Bullet channel]: Horizontal field of view: 180±10°, Vertical field of view: 80±5°;
[PTZ channel]:
Horizontal field of view: 55° to 2.4° (wide-tele),
Vertical field of view: 33° to 1.4° (wide-tele),
Diagonal field of view: 61.5° to 2.8° (wide-tele)