These Marumi DHG Light Control filters work in the same way as standard Neutral Density filters, but have a thinner frame, designed to prevent vignetting when used with wide angle digital lenses. The frame also has a satin smooth finish and the edge of the glass is coated black to futher reduce lens flare and reflections.
Neutral Density Filters reduce the amount of light passing through the lens, reducing shutter speed without affecting colour contrast or balance. Could be described as "sunglasses for your camera". The Marumi Light Control 8 filters are ND8, three-stop reduction filters.
Marumi Digital High Grade filters have been specially designed with Digital Photography in mind. Each filter uses a specially developed ultra-low reflection coating to minimize internal reflection off the cameras built-in CCD and CMOS Sensors. Other anti-reflect features include a special slim frame with satin smooth finish and a black ink process on the glass edge to eliminate flare.