Expand the view on your current security system by adding an Auto-Iris Vari-focal CCTV lens. Traditional zoom functions on security cameras are great, but some have limitations. The 2M-5100A has all the features you need for expansion at an extremely affordable price. The 5-100mm zoom lens has a traditional CS mount. In addition, it also has a 63-2.8 degree viewing angle and an aperture of 1.4~close. The aperture (a hole where light travels) controls the amount of light that passes through the security camera lens, which is crucial when various lighting conditions are present.
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