This 138mm round polarizing filter reduces glare and unwanted reflections, improves contrast, penetrates haze at long distances, deepens blue skies, and helps maintain colour saturation.
This 138mm diopter allows each lens to maintains resolution and picture clarity while maximizing image size.
The variable ND filter is a unique, versatile and flexible tool, affording you the convenience of using several Neutral Density filters all in one. Primarily used as a photographic tool for controlling depth of field and exposure, the Variable ND is being sought in the video market as well because it is fast, easy to use, small, lightweight, and does not require additional accessories such as a matte box. It provides 2 to 8 stops of light control.