High-quality grey filter with haptic feedback mechanism. Reduces digital sharpness for a smooth, aesthetic appearance. The preset stop range prevents cross-polarisation. No vignetting with lenses up to 16 mm focal length. The haptic feedback mechanism allows for effortless locking at each stop setting. It gives your footage a soft, creative look and effectively enhances your shots. The PolarPro Defender360 offers 360° filter protection with a water and dustproof seal. ND filters extend exposure time. A neutral density filter (ND filter) or grey filter blocks a portion of the incoming light. With a grey filter, you significantly extend the exposure time, achieving effects like blurred water or preventing overexposure in bright sunlight with an open aperture.