neautral density

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    Polar Pro ND filters VS Polar Pro polarized ND filters

    I use my P4P mainly to shoot video. I recently purchased polarpro's Artisan Collection which comes with ND32/PL, ND64/PL and ND128/PL. I was reading somewhere on the internet about rotating the filter to get the best results and i don;'t know what that means ecaxtly. Question i am asking did i...