Professional High Definition: PHD lens reduces glass flare and ghosting causes by reflections. Special Element Frame: Special matte aluminum satin finish frame reduces reflections and optimized photography. Premium Rimmed Glass: High Quality rimmed glass reduces light reflection around lens edge. Infrared Compatible: For high resolution day and night recording. Size: Compact and exact size, so you can use it without adding any ring adapter. Black or Silver, subject to availability. Warranty: Lifetime Warranty