Q:What's the difference between the monitor camera and the C/CS interface? It's a 17.5 mm, and a 12.5 mm

Surveillance camera and c interface and the difference between cs interface lens and camera interface to lens focal plane (camera CCD photoelectric sensor should be located) from different c interface to the distance of 17.5 mm, cs type interface this distance is 12.5 mm.

Q:Why is the monitor lens rotten? Where is rotten?

The Small factory optical processing capacity is poor, especially without aspheric mirror, so only by reducing the aperture to improve the optical performance, the general Japanese lens in the usual focal length, little less than 1.6, the small factory or less 1.6 lens usually aperture than 2.0 To be small

Q:Monitoring probe 3.6,6,8 mm lens and other functions, such as effective distance, visual range and so on

The lens is equivalent to the human eye lens, if there is no lens, the human eye can not see any objects; if there is no lens, then the camera output image is a vast expanse of white, no clear image output, which with our home camera and camera principle Is consistent. When the human eye can not stretch the lens to the normal position, that is, people often say myopia, the front of the scene becomes blurred; camera and lens with a similar phenomenon, when the image becomes unclear , You can adjust the camera's back focus, change the CCD chip and the lens reference plane distance (equivalent to adjust the position of the human eye lens), you can blur the image becomes clear.

Q:The 3.6mm and 6mm monitoring camera can see what the Angle is

The 3.6 MM Angle is generally about 87 degrees and 6MM Angle is 60 degrees. The range of monitoring is different, and the distance is not the same

Q:What is F1.2 F on the camera lens? What is the parameter, 1.2 and what are the parameters

The illumination of the image is proportional to the square of the relative aperture of the lens, which is generally used to represent the size of the lens aperture in terms of F = F/D, the inverse of the relative light diameter. The smaller F is, the larger the aperture, the greater the light flux to the CCD chip. So in the case of the same focal length f, the smaller f is, the better the camera is.

Q:Monitor knowledge! How much Angle camera is best for the 1.2m x 20 m?

According to my experience, the first lens with 6mm, the second with 3.6 or 4mm lens is better.

Q:What is the standard for installation and monitoring of cameras?

Generally, 3.6mm 6MM 8MM 12MM 16MM is the most commonly used Angle and distance to be inversely proportional to the Angle of the closer

Q:How to select hd surveillance camera

A good hd camera should have the characteristics of the appearance is exquisite, make its produce certain modification effect on the vision, and whatever place will not be installed in special attention, make its relatively hidden, will not affect the effect of the overall arrangement of the monitoring places. If the control range can be divided into: regional hd camera and IP hd camera

Q:What is the Angle of the surveillance camera

Therefore, when it is necessary to monitor the panorama to see the local, it is generally considered that the electric two variable or electric three-variable lens should be considered. Of course, using high resolution cameras and monitors can also see the local details of the objects being monitored for an hour when the camera is selected

Q:What is the difference between the zoom lens, the automatic aperture and the manual aperture?

Auto aperture manual aperture, that is, the aperture can be adjusted by the camera itself.