Memorializing the groundbreaking achievements made by Tiffen founder Nat Tiffen, Tiffen's NATural Neutral Density Filter line provides game-changing improvements in neutral density filtration. Featuring perfect neutrality across the entire visual and IRND spectrum, resulting in Unmatched color fidelity, these glass filters represent a new era of ND and IRND filtration, and these technological advancements make the NATural the ideal choice for film and photographic production.