The Sony SSC-N21A Analog Color Mini-Dome Camera has a 1/3" EXview HAD CCD II sensor and 12-bit digital signal processor, and provides high-quality imagery at a resolution up to 650 TVL. With horizontal viewing angle of 27.4 to 99.5°, the camera produces detailed images over a wider area. A built-in varifocal lens (2.8 to 10.5 mm) offers an optical 3.7x zoom ratio.Featuring Electrical Day/Night capability and Adaptive Tone Reproduction, the Mini-Dome Camera captures clear images both in low-light and bright-light conditions. The iBLC feature automatically compensates for exposure levels in dark light conditions, improving image visibility.The Analog Color Camera digitally corrects any video noise that could cause blurring or distortion in the images by minimizing the signal-to-noise ratio penalties. Automatic Gain Control function automatically adjusts the signal strength to maintain a constant brightness level.