CM-4221 Installation Manual129o “Off”-the IR light is always off.Press <√> to confirm the new settingNOTE: The IR LED function is available only on CM-4221-10-I and CM-4221-11-I.6.5.7 WDR FunctionThe Wide Dynamic Range (WDR) function is for resolving high contrast or changing lightissues in order to enhance the video display. The WDR is adjustable from “Low”, “Mid” to“Hi”. Higher level of WDR represents wider dynamic range, so that the camera can capture agreater scale of brightness. Press <√> to confirm the new setting.6.5.8 Noise ReductionThe camera provides multiple Noise Reduction options for delivering optimized image quality,especially in extra low-light conditions. Level options for 3D Noise Reduction (3DNR) include“Low”, “Mid” and “Hi”. A higher level of 3DNR generates relatively enhanced noisereduction.The proprietary Smart Picture Quality (SPQ) video processing method provides clear imageseven in a low-light environment and can drastically minimize motion blur. The combination ofSPQ and 3DNR at different levels yields exceptional video performance in various conditions.Noise Reduction is adjustable from “3DNR Low”, “3DNR Mid”, “3DNR Hi”, “SPQ”, “SPQ +3DNR Low”, “SPQ + 3DNR Mid”, to “SPQ + 3DNR Hi”. Press <√> to confirm the newsetting.