A neutral grey camera filter which is used to reduce the amount of light entering the camera when a slow shutter speed or wide aperture is needed. (see Aperture & Shutter speed)
Grey-coloured filter that cuts down the amount of light entering the lens. Used in very bright conditions, or when you want to force the iris to open to restrict depth of field.
(ND) Lighting filter which reduces the brightness of a light source without changing its colour.
A thin sheet or disc of glass, plastic or gelatin having plane and parallel faces, toned to some uniform and specific shade of gray, and intended to be used over the camera lens during exposure for the purpose of reducing the intensity of the exposing light without changing its color.
A filter used with lenses that reduces light of all wavelengths equally
a filter that blocks light while allowing some light to pass through
a glass or polycarb element that has some of the element blacked to block incoming light
a light filter, or lens, that filters light but does not affect the color or quality of the light
Filter that reduces the amount of light entering the camera lens.
A light filter that decreases (attenuates) the intensity of light without altering the relative spectral distribution.
A type of filter to reduce the amount of light transmission without cutting of any particular frequency range of the light. Some lenses incorporate ND filter as a built-in feature for the purpose of helping the diaphragm function toward the minimum aperture range. Optional filters of different diameters are available for attachment to the front of a lens (ND 2X, 4X, etc.).
Filter for use in front of the lens that absorbs all visible wavelengths to a more or less equal extent. ND filters can be used with both monochrome and color films, since they have no effect on color balance.
An optical or infrared filter for which the transmission is constant and not a function or wavelength.
A dark filter that attaches to a lens in order to control the amount of light reaching the film.
A filter which attenuates radiation uniformly over a wide range of wavelengths; used in infrared systems as a temperature range extension filter.
screwed to the front of the camcorder's lens, it reduces the intensity of light passing through it. Different strengths are available of which the most useful is one which cuts down the light by three f-stops.
This is a filter that reduces the amount of light passing through the lens, but doesn't add any sort of color cast. These filters are useful for pictures that are teken in bright light with fast film, or long exposures. Noise- Noise is the random dots or color changes in an image, similar to snow in an older television.
In photography and optics, a neutral density filter or ND filter is a "grey" filter. An ideal neutral density filter reduces light of all wavelengths or colors equally. The purpose of standard photographic neutral density filters is to allow the photographer greater flexibility to change the aperture or exposure time, allowing for more control, particularly in extreme circumstances.