C-PL Circular Polarizer — Multicoated Multithreaded Glass Filter 82mm for Sigma SD14

C-PL (Circular Polarizer) engineered for use with the Sigma SD14. Light reduction between 2.3 and 2.8 (approx. +1.3 stops) to help cut reflections and boost color saturation. Built with heat treated glass set in a rugged metal filter ring (black finish). Multicoated optics improve contrast and reduce flare, while the slim design minimizes vignetting on wide-angle lenses. Multithreaded construction allows mounting lenses or filters on top. Suitable for both video and photography applications.