Cat 4 92-93% density (7-8%VLT) This filter is very bright light dedicated with little tolerance for flatter light or overcast conditions. The relatively neutral character of it’s pigment keeps color perception truer…better for desert applications than higher altitude.
Learn more about special lens treatments such as routing, material type, and anti-fog.
SINGLE VISION RESIN $239
PROGRESSIVE RESIN $289
POLY/NXT Prescription versions of this material are not available in a 92-93% density required for a SILVER FROG lens filter.