L41 Super UV Cut Glass: The Zeta UV L41 filter absorbs up to 410nm of ultraviolet rays. Normal UV glass has a slight yellow tint, but the L41 is perfectly clear due of the use of a high-performance glass
ZR ( Zero Reflection ) Super Multi-Coating: This innovative coating will not interfere with any color or light transmission. Reflections are eliminated by allowing light to enter the filter at virtually any angle.
Ultra Smooth Surface - Nano Glass Technology: Our Nano Glass Technology creates an ultra smooth surface from the finest particles of glass, making it stain and scratch resistant without any effect to the image.
High End Construction - Ultra Thin Frame: The glass of this lens is precision machined and attached using Retainer Ring Mount Technology giving this filter an unsurpassed durability. An ultra thin frame also makes it wide-angle lens compatible.
Comparable in optical quality & build to Hoya HD & EVO/Fusion Series Filters Superior to Hoya HMC, NXT & Alpha Series Filters