Tiffen IRND Filter 6.6x6.6" Water White Natural 0.3 (1-Stop)Achieve Perfect Exposure with the Tiffen Water White Natural IRND Filter The Tiffen 6. 6x6. 6" Water White Natural IRND 0. 3 Filter is a neutral density filter designed to provide a 1 stop exposure reduction. Constructed from Water White glass, this filter ensures increased clarity and color fidelity, while its optimized design minimizes color casts when using digital sensors. Specifications: Brand: Tiffen Type: Neutral Density Filter Density: 0. 3 (1