Digital HT filters are a state-of-the-art technological breakthrough in multi-coated photo and video filters. Made for the discerning professional and imaging enthusiast, Digital HT filters with Hi-Trans Double-Sided Titanium Multi-Coating surpass even military specifications for hardness and durability. Digital HT (High Transmission) filters offer the strength of a Titanium coating combined with the purest optical quality glass and Tiffen's Academy-Award-winning ColorCore technology. It presents unmatched scratch-resistant durability and worry-free cleaning. Tiffen's research and development team has conquered the challenges of multi-coating. No longer is your investment in a multi-coated filter subject to the everyday challenges of dirt, humidity, and potential scratching which can render your multi-coated filter useless. Along with the extreme toughness and durability, Tiffen Digital HT Titanium Coating features excellent Anti-Reflective characteristics. The Titanium coating consistently reflects less than 1% of the imaging light hitting the front surface of the filter while transmitting nearly 99%.