This is a high-quality, wide-range variable neutral density filter designed specifically for lenses with a 77 millimeter filter thread. It empowers photographers and videographers to precisely control the amount of light entering the camera, which is essential for creative effects like long exposures in bright daylight or maintaining cinematic shutter speeds when shooting video in Japan.
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Contact Jasumo Now →The filter provides flexible light reduction from ND 2 point 5 up to ND 450 equivalent. It is engineered to minimize the common ‘X-ray’ cross pattern often seen with variable ND filters on wide-angle lenses, ensuring clean, high-quality images during your travels.
The Kenko Variable ND-W 77 millimeter filter is an indispensable item for serious photographers and filmmakers visiting Japan, especially those using professional-grade lenses. It offers the flexibility to easily manage exposure when moving between bright outdoor shrines and shaded indoor areas, all while preserving the integrity of your image quality.
This filter works by letting you smoothly and continuously adjust the light blockage by rotating the outer ring. This control is critical for achieving a slow shutter speed—allowing you to capture the motion of clouds or soften the appearance of water—or for using a wider aperture in bright light to achieve a shallow depth of field for portraiture.
The design utilizes a high-quality polarizing film which not only facilitates the variable density function but also helps maintain a neutral color balance in your resulting images, preventing unwanted color shifts. It is compatible with all camera lenses that have a 77 millimeter filter thread.
| Characteristic | Detail |
| Filter Diameter | 77 millimeter |
| Density Range | Variable ND 2 point 5 to ND 450 |
| Primary Use | Exposure Control, Video Shutter Speed |
| Design Feature | X-ray pattern minimization |
| Adjustment | Rotating outer ring with detachable lever |
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For videographers, a variable ND filter is crucial because it allows them to maintain a constant, desirable shutter speed (usually double the frame rate for a smooth look) even when the light is very bright. Without it, you would have to sacrifice motion blur quality or severely stop down your aperture.
We recommend setting the density to a maximum of ND 128 equivalent. Using higher densities increases the risk of the X-ray pattern or color unevenness, especially on wide-angle lenses, which can compromise image quality.
The filter diameter is always clearly printed on the barrel of your camera lens, often next to the diameter symbol, or on the lens cap itself. This number must match 77 millimeter for this filter to correctly screw onto your lens and function as intended.
Because variable ND filters are made by layering glass elements, the frame is thicker than a standard filter. On extremely wide-angle lenses (focal lengths of 28 millimeter or shorter), there is a possibility of some slight vignetting (darkening at the corners of the image), so we recommend testing before critical shots.
This means that while the filter uses polarizing elements to achieve the light reduction, the effect of polarization—such as reducing reflections or darkening skies—is generally canceled out due to the stacking of the two polarizing layers necessary for the variable ND function. You should not expect a distinct polarizing effect.
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