Promaster 69345 49mm Circular Polarizer Filter (CPL) - Pure Light Adapters & Spigots A masterfully engineered optical formula

A masterfully engineered optical formula that includes three Aspherical (AS) lens elements

so it’s very handy for travel because it can replace several single lenses

The ideal bag just became much more ideal

Designed specifically with a deeper profile

Promaster 69345 49mm Circular Polarizer Filter (CPL) - Pure Light Adapters & Spigots A masterfully engineered optical formulaPURE LIGHT CIRCULAR POLARIZING FILTER This Pure Light Circular Polarizing Filter features polished Schott B270TM optical glass and multicoatings that provide remarkable performance along with oil and water resistance. CPL filters use high transmission film, with an impressive average light transmittance of 42. 9%! Made in Japan, home to the very best polishing techniques, coating formulas, and unmatched attention to detail. Multi Coatings are