Product Features
  • Solid Neutral Density Filter
  • 4000x Filter Factor, 12-Stop
  • Darkens Entire Image
  • Allows Reduced Shutter Speed
  • Allows Wider Aperture

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Expand the range of creative effects available to you with the PowerND ND4000 55mm Neutral Density Filter from Aurora-Aperture . This round 3.6 ND filter features a 4000x filter factor that provides a 12-stop reduction in exposure, allowing you to slow down shutter speeds to a few seconds under daylight or minutes during dusk and dawn. It also lets you use wider apertures in bright lighting situations, or combine wide apertures and slow shutter speeds with ease.

Applied to both sides of the glass, the filter's multi-layer nano coating allows for accurate colour performance and little to no loss in resolution. This coating also repels water, oil, and dust to make the filter surface easy to clean. The PowerND is made of Schott B 270 glass for increased clarity and durability, and has a slim profile with a thickness of 3.4mm that minimises vignetting when using wide angle lenses. Finally, 55mm front filter threads enable stacking with other filters to achieve a wide variety of effects.

Key Features


  • 55mm round filter made of Schott B 270 i Ultra-White glass
  • Multi-layer nano coating applied to both sides to preserve image quality and repel water, oil, and dust
  • Front filter threads allow you to stack it with a CPL or UV filter of the same size

Image Quality

  • 12-stop exposure reduction, allowing for slower shutter speeds and wider apertures
  • Accurate colour rendition and little to no loss in resolution
  • Minimised vignetting even with wide angle lenses thanks to filter's slim profile
Filter TypeSolid ND
Density3.6 (12 Stops)
Circular Size55 mm
Front Accessory Thread / Bayonet55 mm
Filter Thickness0.13" / 3.4 mm
Physical FeatureSlim
Filter MaterialGlass
Aurora-Aperture PowerND ND4000 55mm Neutral Density 3.6 Filter
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