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Neutral-density filter

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BUFF BASICS: Neutral Density Filter

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Moment Variable ND Filters Review | Affordable cinema level quality.

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Nick Rains explains how to use ND Filters

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Graduated Neutral Density Filter: You Keep Shooting with Bryan Peterson: Adorama Photography TV

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How To Get The Cinematic Look in Bright Sunlight (ND Filters for Video Tutorial)

In photography and optics, a neutral-density filter, or ND filter, is a filter that reduces or modifies the intensity of all wavelengths, or colors, of light equally, giving no changes in hue of color rendition. It can be a colorless (clear) or grey filter. The purpose of a standard photographic neutral-density filter is to reduce the amount of light entering the lens. Doing so allows the photographer to select combinations of aperture, exposure time and sensor sensitivity that would otherwise produce overexposed pictures. This is done to achieve effects such as a shallower depth of field or motion blur of a subject in a wider range of situations and atmospheric conditions.