Surveillance camcorders are generally categorised in line with the type and model of the lenses. Let's consider a closer inspection at its capabilities and usage circumstances.
(1) Large-direction zoom lens: the viewing position is far more than 90 diplomas, camera module manufacturerwhich happens to be typically found in areas with big viewing angles like escalator autos and places
(2) Normal lens: the observing angle is all about 30 levels, which can be generally utilized in locations including sidewalks and encircling regions
(3) Telephoto camera lens: the viewing direction is within 20 degrees, along with the central length is produced by tens of millimeters to a huge selection of millimeters, which is often used for long-length keeping track of
(4) Zoom lens: the focal size variety of the camera lens is adjustable, from vast-position to telephoto, with a wide array of watching aspects
(5) Pinhole lenses: for covert checking.
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