QuartzLine filters are 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. Combined with an over-engineered brass frame, QuartzLine filters thread on smoothly and are built to withstand your most rugged adventures.
- Fused Quartz Glass Element - Resolves up to 400MP sensors
- Brass Frame - Smooth threading and increased durability
- Perfect Color Neutrality - New coating process for zero color shift
- 16 Coating Layers - Anti-scratch / anti-oil / hydrophobic coatings
- Adventure Assurance™ - Be satisfied with your PolarPro gear throughout your adventures or your money back.