Vivitar ND8 VIV-ND8-55 Neutral Density Filter (Black)

This Neutral Density filter reduces intensity of all wavelengths or colors of light equally, giving no changes in hue or color rendition. The purpose of standard photographic neutral density filters is to allow the photographer greater flexibility to change the aperture, exposure time and/or blur of subject in different situations and atmospheric conditions. Instead of reducing the aperture to limit light, the photographer can add a ND filter to limit light, and can then set the shutter speed according to the particular motion desired and the aperture set as needed.Neutral Density filters have a four main uses: 1) To enable slow shutter speeds to record movement in subjects such as waterfalls, clouds, and cars. 2) To decrease depth of field by allowing wider apertures to be used. This helps separate subjects from their background. 3) To decrease the effective ISO of high speed film and allow it to be used outdoors in bright situations.