Neutral Density Filter

In photography and optics, a neutral density filter or ND filter is a filter that reduces and/or modifies 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 allow the photographer greater flexibility to change the aperture, exposure time and/or motion blur of subject in different situations and atmospheric conditions.

Read more about Neutral Density FilterMechanism, Uses, Varieties, ND Filter Types

Other articles related to "neutral density filter, filter, density, filters, neutral density":

Photographic Filter - Uses of Filters in Photography - Neutral Density
... A neutral density filter (ND filter) is a filter of uniform density which attenuates light of all colors equally ... A graduated neutral density filter is a neutral density filter with different attenuation at different points, typically clear in one half shading into a higher density in the other ...
Neutral Density Filter - ND Filter Types
... In photography, ND filters are quantified by their optical density or equivalently their f-stop reduction ... value is sometimes used lens area opening, as fraction of the complete lens optical density f-stop reduction % transmittance 1 0.0 100% ND2 1/2 0.3 1 50% ND4 1/4 0.6 2 25% ND8 1/8 0.9 3 12.5% ND16 ...
Graduated Neutral Density Filter
... A graduated neutral density filter, also known as a graduated ND filter, split neutral density filter, or just a graduated filter, is an optical filter that has a variable light transmission ... Typically half of the filter is of neutral density which transitions, either abruptly or gradually, into the other half which is clear ... ND filters can come in a variety of shapes and sizes and densities and can be used in all types of photographic applications from still photography, motion ...

Famous quotes containing the word neutral:

    The seashore is a sort of neutral ground, a most advantageous point from which to contemplate this world. It is even a trivial place. The waves forever rolling to the land are too far-traveled and untamable to be familiar. Creeping along the endless beach amid the sun-squall and the foam, it occurs to us that we, too, are the product of sea-slime.
    Henry David Thoreau (1817–1862)