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Advantages of varifocal lenses in surveillance systems—CCTV cameras Varifocal lens show how much they can adapt to various monitoring requirements. These are the lenses whose focal length may be varied, allowing the operator either to zoom in or out without changing the lenses to bring into optimal coverage of areas under view. This flexibility gives enhanced surveillance capabilities that turn out clear images with details across varying ranges—wide-angle views to close-up views. Last but not least, varifocal lenses also reduce installation complexity and cost since a single lens would replace multiple fixed lenses. All this adaptability makes them very important to complete and effective surveillance, both indoors and outdoors.

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