Polaroid 4 Piece 72mm Filter Kit, Includes Case, UV / CPL / FLD / Warming Filters

The Polaroid 4 Piece 72mm Filter Kit are carefully formulated to ensure consistent color and accuracy throughout the entire surface of the glass. Consistent color means consistent high quality results. You know that a poorly made filter makes a great lens and camera worthless, that's why these frame rings are constructed of special alloys that won't expand or contract over time or due to temperature extremes.