Security camera CCTV lenses and differ
- 19 Feb 2014
The differences in diameter of the lens in the security camera determine the angle that can be displayed by the CCTV camera. The larger the diameter of the lens, the narrower and more zoomed in the viewing angle. Most security cameras with fixed CCTV lenses have a 3.6 or 6 mm lens. A 3.6 mm lens is designed to give a viewing angle of 72 degrees. When you need to be able to adjust the viewing angle precisely, it is advisable to choose a security camera with a varifocal cctv lens, because these can be set between often 4 and 9 mm.
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