Q:What is the difference between monitoring cameras CCD1 / 3 and 1/4?

Only 1/3 inch, 2/3 of the lens through the aperture of 2/3 inch, so under the same lighting conditions, 2/3 lens allows more light through, thus indirectly enhance the camera's illumination, ? 16MM of the small perspective, according to far, 8MM lens perspective, according to the relative, relatively speaking, the principle of record: the greater the number, according to the more distant, the smaller the angle; the smaller the number, The more widely

Q:Panasonic surveillance camera wv-cp704 / ch corresponding to which foreign models

First determine the problem, of course, is the discharge method: 1. LAN problems arise, then ping the camera's ip address, whether normal,

Q:Monitor the camera focal length 3.6mm 4mm 6mm. What is the meaning?

Mm is the lens of the aperture, the number of millimeters, not the bigger the better, the smaller the camera according to the wider picture, the larger the picture the more narrow the picture, the large number of millimeters of the lens is equivalent to the local zoom, The need to size, the size of the number of millimeters of the lens price is the same, there is a picture below you look at it to understand

Q:Elevator in the monitor camera lens focal length with the number

Elevator lens generally use wide-angle lens, commonly used wide-angle lens is 2.8 mm, 3.6 mm. Generally installed in the upper right corner of the elevator or the upper left corner of the location

Q:Monitor the camera automatically zoom, electric zoom, manual zoom, zoom lens meaning and difference?

Manual zoom: Change the focus on the front-end camera by manually rotating the lens. This function usually appears in the bolt + manual zoom lens configuration, set once, do not change later, if you want to change the focal length, need to open the shield again, rotate the lens. This type of lens usually needs to adjust the focus ring after the zoom work is completed.

Q:What kind of surveillance camera is good for the hotel?

Elevator: Suitable for use with some miniature cameras such as a flying saucer camera, or a small hemisphere. Installation is simple, the overall effect is beautiful

Q:I would like to ask how the video surveillance camera is powered?

You are right, video surveillance cameras used to make a signal with a coaxial line, and then another line when the power supply, but the two lines can also be a line to achieve. That is to use control Because the control line is a double core, with a shield, we can put the video ground, and the power of the negative line, together, sharing a line, that is, the control line of the shield, and then Inside the two core, one when the video signal is positive, one when the power is positive. This can, but if the distance is very long, it is recommended not to do so, because of this, the signal shielding will be a little interference.

Q:Camera monitor the recorded file 1 hour how much G ah?

Monitor video 24 hours per channel per day Recording space size calculation formula:

Q:What is the effective range of infrared surveillance cameras?

Now that the effective range of infrared camera monitoring is how much, bad conclusion, the general infrared camera 3.6-6 mm camera is generally within 40 meters, belonging to the indoor machine and the door is dedicated to wide-angle lens.

Q:Office area monitoring camera how to choose?

1, because the hemispherical can be ceiling on the ceiling, more beautiful