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Vu Filters Sion L-ND4 Neutral Density 4-Stop Drop-In Filter (150 x 150mm)

Vu Filters
Vu Filters Sion L-ND4 Neutral Density 4-Stop Drop-In Filter (150 x 150mm)
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Vu Filters Sion Overview

  • 1Description
  • 2Key Features
  • 3German formulated optics
  • 4Unsurpassed optical resolution
  • 5Flat wave overcoat
  • 6White balanced multi-coating
  • 7Hand crafted and inspected

Vü Sion L Neutral Density Filters provide filmmakers and photographers a broad range of flexibility in managing their exposure and depth of field. Available as square glass filters in fixed density increments, Vü Sion L Neutral Density Filters feature a unique White Balance Multi-Coating, specially formulated Flat Wave Overcoat, and are designed to be the perfect tool when your creative vision demands it most.

Key Features

  • German formulated optics
  • Unsurpassed optical resolution
  • Flat wave overcoat
  • White balanced multi-coating
  • Hand crafted and inspected

German formulated optics

Utilizing the same processes to create German Schott Glass, this glass is ground and polished to achieve the highest performance possible, ensuring maximum resolution of the photographic image, while appearing completely invisible to you and your lens.

Unsurpassed optical resolution

These filters are held to the highest optical resolution standards and will not degrade your image when placed in front of a lens.

Flat wave overcoat

Optic coating that gives the filter's front surface a "smoother-than-glass" finish, making filter maintenance and care much easier.

White balanced multi-coating

Specially formulated ingredients and coating process assure that recoded image will be exactly the way you captured it.

Hand crafted and inspected

Run in small batches, hand crafted, and individually inspected to ensure the utmost in optic quality.

Vu Filters Sion Specs

Filter TypeSolid ND
Density1.2 (4-Stop)
Rectangular Size6 x 6" / 150 x 150 mm
Filter MaterialNot Specified by Manufacturer
Packaging Info
Package Weight0.725 lb
Box Dimensions (LxWxH)7.75 x 6.95 x 0.8"
See any errors on this page? Let us know



Is there a place where I can just buy the plastic case shown in pictures?
Asked by: Myles P.
Unfortunately, we dont carry that filter case separately. You could look at the B+W Plastic Filter Case D. It would be able to accommodate a circular filter up to 82mm.
Answered by: Christina S.
Date published: 2018-08-25


Is it same the polarizer that comes with Vu Filters 150mm Filter Holder and Sion Circular Polarizer Kit ?
Asked by: Eugene Y.
No it is not. The polarizer from the VFHSCPOL150 is a specially designed optic for the VFH150. The 105mm Sion Circular Polarizer is a standard 105mm threaded filter for lenses with 105mm threads
Answered by: Victor H. Heliopan Expert
Date published: 2018-08-26


is this filter threaded so that I can screw another filter onto it once it is screwed into the camera lens?
Asked by: Steven L.
No this filter does not have front threads. As a note, it is not recommended with a ten stop filter to use stack filters. The chances of getting flair or color shifts increases by stacking and especially on a ten stop filter.
Answered by: Robert K.
Date published: 2018-08-25


How does the VU compare with the B+W?
Asked by: David S.
Both brands are rated very high as filters go. And within each brand there are ones that are multi-coated and not. In general it is important that a filter be multi-coated. That helps limit flair. Optically they again are very good but some prefer B+W over the other. And just a note that the specific Vu filter does not have front threads.
Answered by: Robert K.
Date published: 2018-08-25
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