NEEWER variable ND3-ND1000 neutral density filter reduces the amount of light that your camera lens is exposed to, from 1.5 to 10 stops, to help photographers deal with different light conditions, from cloudy sky to bright sunlight. Simply rotate the filter ring to adjust light exposure to a proper level, guided by the F stops marked on the frame. It blocks light to avoid overexposure and slows down the shutter speed to create motion blur and light trails. The HD optical glass material ensures no color cast and clear images.
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