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.
FEATURES
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
