Neutral Density Variable Fader NDX (ND2-ND1000) Filter for Pentax SMC DA 50mm f/1.8

Description

• To enable slow shutter speeds to be used, especially with high-speed ISOs, to record movement in subjects such as waterfalls, clouds, or cars.
• To decrease depth of field by allowing wider apertures to be used, which helps separate subjects from their background.
• To decrease the effective ISO of high-speed film (above ISO 400) and allow it to be used outdoors in bright situations.
• To allow cameras & video cameras (which have fixed shutter speeds) to film and photograph subjects such as snow, sand or other bright scenes which could cause overexposure.
• Specifications: Color: Black, Rotating: Yes. Neutral density grade: 2 1000, Material: Optical resin glass.

This Variable Range Neutral Density Filter is manufactured from high-quality solid optical materials. Each individual filter is heat-treated to avoid any distortion. Enjoy total control of virtually any lighting environment and reduce brightness without affecting color or depth of field. Simply turn this filter's exterior ring to change ND settings without wasting time changing or adding filters. Variable neutral density filters reduce intensity of all wavelengths or colors of light equally, resulting in 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 accordingly.

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