What is the angle of view of the camera?

The 3.6mm screen angle is 96°; the 6mm screen angle is 53°.

The effective range of the camera photo changes according to the size of the lens. The following is the lens size of the fixed camera and the angle of the illuminated range.

Calculation method of surveillance camera angle range: horizontal field of view: α=2arctan (w/2f); vertical field of view: β=2arctan (h/2f). Where w is the width of the field of view, h is the height of the field of view, and f is the focal length of the lens.

Although the calculated field of view is slightly smaller than the actual field of view, the difference is negligible. Here we use the calculated field of view to describe the camera's monitoring range. 1/2.7＇＇CMOS imaging size is: w＊h＝5.27mm＊3.96mm.

The main functions of the dome camera:

1. Preset point or preset position

The so-called preset function means that the smart speed dome can change the current status Relevant parameters such as the horizontal angle, tilt angle of the lower pan and tilt angle and the focal length of the camera lens are stored in the memory. When necessary, these parameters can be quickly recalled and the pan and camera can be adjusted to that position.

2. Automatic cruise

The so-called automatic cruise means that certain preset points can be arranged into the automatic cruise queue in the required order through pre-programming and only require an external command. This allows the dome machine to automatically move back and forth according to the set preset point sequence at the set time interval.

3. Automatic scanning

The so-called automatic scanning refers to pre-setting the left limit and right limit, which can realize the camera to automatically move horizontally between the left and right limits at a set speed. Scan back and forth.