The Sion Variable Neutral
Density Filter from Vu Filters
uses impact-resistant, Ultra-White Schott German glass optics. This
filter is designed with a built-in rotating ring that controls neutral
density up to 7 stops, which allows you total control over your depth
of field. The heavier the density, the slower your shutter speed will
be. This longer exposure allows the shutter to remain open long enough
to record the same amount of light but will also allow movement within
the shot. The Sion’s White Balanced Multi-Coating avoids color shift.
The UV filter also helps to keep dust and moisture from reaching your
lens element and provide protection from scratches. Its Flat Wave
Coating makes the Sion’s front surface “smoother than glass” for easier
cleaning and maintenance. The glass edge is black to prevent internal
reflections. The Sion’s CNC aluminum filter frame is made from a single
piece of black anodized aluminum to prevent damage from side impacts.
This filter is handcrafted and inspected for guaranteed quality.
Type: Solid neutral density
Density: Up to 7 stops
Effect: Permits a longer
Construction: Schott German
Optical glass, Aluminum alloy filter ring