The Lee Filters 4x4" UV-2b Resin Filter protects your lens from dust, moisture, and scratches that can lead to costly repairs. If desired, they can be left on the lens at all times for protection. Haze filters provide correction for Ultraviolet (UV) light, which can register on film and videotape as a bluish cast and can obscure distant details. Ultraviolet filters allow you to correct for the UV effect to varying degrees.
The UV (2B) filter is useful for high altitude photography and eliminates almost all present UV light.
This filter measures 100 x 100mm by 2mm thick.