Sigma WR Circular Polarizer Filter PHILIPS One Aspherical and one SLD

One Aspherical and one SLD Glass Element

It features six extra-low dispersion elements

2 R APD Lens

Closed-Bridge Configuration

Sigma WR Circular Polarizer Filter PHILIPS One Aspherical and one SLDSigma WR Circular Polarizer Filter 1. 25 to 1. 4x Filter Factor +0. 3 to 0. 5 Stops Helps to Eliminate Reflections and Glare Reduces Haze in Landscapes Greater Color and Tonal Saturation Black Rimmed Optical Glass, Multi Coated Water, Oil, Static, Scratch Resistant Slim Aluminum Alloy Filter Ring The Sigma WR Circular Polarizer Filter helps to reduce reflections and glare by filtering out light that has become polarized due to reflection from a non