3MP 20M IR Smart IR Smart Stream 3DNR Smart Focus System Fixed Dome Network Camera FD8171. VIVOTEK FD8171 is a professional indoor dome network camera offering 30 fps @ 3-Megapixel or 60 fps @ 1080p resolution with superb image quality. As a professional day/night camera, FD8171 adopts a Smart IR technology which prevents overexposure and provides noise reduction to adjust the IR lighting intensity instantaneously based on the changes of lights in the ambient environment. Focal Length: f = 3 ~ 10mm, Aperture: F1.3 ~ F2.5 Features: 3-Megapixel CMOS Sensor 30 fps @ 2048x1536 Motorized, P-iris Lens & DC-iris Removable IR-cut Filter for Day & Night Function Built-in IR Illuminators, Effective up to 20 Meters Smart IR Technology to Avoid Overexposure Smart Stream to Optimize Bandwidth Efficiency 3D Noise Reduction for Low-light Conditions Real-time H.264, MPEG-4, and MJPEG Compression WDR Enhanced for Unparalleled Visibility in Extremely Bright or Dark Environments Smart Focus System for Remote and Precise Focus Adjustment Two-way Audio Built-in 802.3af Compliant PoE Built-in MicroSD/SDHC/SDXC Card Slot for On-board Storage