The HD Circular Polarizer is a hardened glass filter. Hoya HD (High Definition) Filters feature 99.35% light transmission from an 8-layer anti-reflective, multi-coating, which help reduce reflections off the surface of the glass.

Features:

• HARDENED GLASS
  Hardened optical glass that has 4 times the breaking strength in ANSI standardized testing (ANSI Z80.3 : 2001) where a steel balls of varying size and weight were dropped from a height of 50 inches onto the glass.


• HIGH TRANSPARENCY POLARIZING FILM
  The polarizing film is the same as that used in the latest high definition LCD TV screens. It has 25% higher light transmission than standard polarizing film used in current photographic filters.


• WATERPROOF / SCRATCH & STAIN RESISTANT MULTI-COATING
  Specialized coatings that are not just water-proof to repel water spots but also hardened to be scratch and stain resistant. Of course these coatings are from HOYA so they are greatly reduce reflections off the surface of the glass allowing you to capture more light in your photos.

Hoya creates products and services that are recognized as providing true value to customers. Hoya's products and services are safe and of high quality.