PolarPro 77mm QuartzLine UV Filter

PolarPro 77mm UV Quartzline Filter 

The PolarPro Quartzline 77mm UV Filter is made of 99.9% pure fused-quartz glass for unrivaled durability and optical clarity. These single lens element filters produce a very low refractive index of just 1.46 and offer outstanding temperature stability.  QuartzLine filters let content creators bring true-to-life colours to their final product from the most extreme locations on the planet.

Combined with an over-engineered brass frame, 16 anti-scratch, anti-oil, hydrophobic coatings on filter lens, the QuartzLine filters thread on smoothly and are built to withstand your most rugged adventures.