High-performance 55mm Digital HT Ultra Clear Glass Filter for optimal lens protection Made from purest optical quality glass and Tiffen's award-winning ColorCore technology Advanced multi-coating technology with a double-sided titanium coating for scratch-resistant durability Easy and worry-free cleaning, unlike other coated filters on the market Features a low-profile titanium finish ring and anti-reflective black lock ring for a distinctive aesthetic Part of the wide-ranging Digital HT filter series, offering varied options for different photography needs