The MC-UV filter from Fotodiox is a double threaded UV filter, coated with multiple layers to prevent glare and improve lens performance. Helpful when photographing mountain and marine scenes where increased haze threatens to make your photographs indistinct in color and clarity. UV filters are wise investments: they help protect your camera from dust, moisture and scratches. If desired, they may be left on the lens at all times for protection. UV filters provide additional benefits of correction for Ultraviolet (UV) light, which can register on digital, film and videotape as a bluish/purplish fringing and can obscure distant details. Ultraviolet filters allow you to correct for the UV effect to varying degrees. This filter is Multi-Coated to minimize reflection at the filters surface; therefore, reducing flare and ghosting.