Opteka 77mm Super Multi-Coated Circular Polarizer Filter. Opteka Microfiber Cloth. Opteka 1-Year Warranty. The effect can be seen through the viewfinder and changed by rotating the filter. This filter is constructed from optical glass for clarity as well as color fidelity and features an aluminum-alloy filter ring that can be rotated in order to adjust the intensity of the polarization effect.
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