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the different view range of camera lens

there are several different sizes of cctv camera lens.for example: 1.8mm 2.8mm 3.6mm 4mm 6mm 8mm 12mm

some of clients will have troubles in choosing the lens for their cameras.


what's the view range of different size lens?

The viewing distance of the lens with a focal length of 2.8mm is 5-6m, and the horizontal viewing angle is 105 degrees.

The viewing distance of the lens with a focal length of 3.6 mm is 7-8 meters, and the horizontal viewing angle is 90 degrees.

The viewing distance of the lens with a focal length of 3.6 mm is 25-30 meters, and the horizontal viewing angle is 30 degrees.


nowadays cctv cameras are more and more popular in our daily life,we can see different cameras in different places.

lens to a cctv camera is like eyeball to human being, it is the most important part of cctv camera.

so suitable lens for camera is very important in different places.

the following picture show the relation between lens size and view range clearly.

please have a look:

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