The NiSi True Color ND-VARIO Pro Nano 1-5stops Variable ND is
designed to mount onto lenses with 95mm front filter threads and
provides an exposure reduction of 1 to 5 stops. The 0.3 to 1.5 density
creates a darkening of the entire image, allowing wider apertures or
slower shutter speeds than usually possible. The degree of density is
easily controlled by rotating the front filter ring with or without the
included silver lever, helping you predetermine the additional exposure
length required. By slowing your exposure time or increasing your
aperture, you can control the depth of field and convey movement more
easily. The transition of density occurs smoothly which allows the
photographer or videographer to adjust exposure length to the exact
amount required for a given scene. For easier, repeatable control over
density settings, the front ring is visually marked with numbers
representing the different stop values. The ring features silver side
knurlings for a secure grip and easy installation and removal. For
those using this filter with cinema or video cameras, combined
adjustments of aperture and this filter allow fine adjustments of the
depth of field while retaining the designated frame rate.
The Variable ND offers True Color that avoids color shift seen in
other Variable filters. The NiSi True Color ND-VARIO Pro Nano 1-5stops
Variable ND is made from high-definition optical glass for the best
resolution and quality. The glass is coated using the NiSi Nano coating
providing a waterproof, oil-proof and anti-reflective coating to avoid
ghosting and reflections. The filter ring is made from high-quality
aluminum creating a very light and strong filter.