The Starlight VF Eyeball Network IR Camera is an effective high tech security camera. For example, this product comes with Starlight illumination to ensure perfect image with bright background and dark foreground. In addition, The IR anti-reflection window feature helps increase the infrared transmittance, while shooting up to 98 feet IR distance. The camera is 5 megapixels and comes with built-in motorized lens for remote zoom. In conclusion, this VF Eyeball Network IR Camera includes optical glass window with higher light transmittance and 2D/3D DNR (Digital Noise Reduction).