Commercial grade box camera produces 600TV Lines of high resolution. Infrared Cut Filter (ICR) for true day/night vision. Digital Noise Reduction (DNR) renders crisp video. Box camera varifocal lens has 5.0 mm-50 mm range that allows maximum viewing angle flexibility and has an auto IRIS. The box camera utilizes the D-WDR feature that is capable of generating a clear picture where strong backlighting occurs. The box camera enclosure, included, has an automatic heater/blower which makes the camera suitable for outdoor applications. True Professional Grade.