New Hoya Variable Density filter in sizes from 52 mm to 82 mm.
Each filter uses two polarising layers to control the amount of light that passes through the filter and into the camera lens. They can be used for creating artistic blurring shots of motion on water, cars, people or almost anything that moves. After the filter is mounted on the lens, turning the filter ring between the Min and Max settings enables photographers to control the amount of light entering the lens. With the Hoya Variable Density filter, it’s possible to shoot with fast lenses in full sun for a very shallow depth of field or to slow down the shutter speed to where the shutter can be open for several seconds in full sunlight.
At the minimum setting, the filter passes 1/3 of the lightin a scene; equal to 1.5 stops of aperture or shutter speed. At the maximum setting, the filter passes just 1/400 of the light in a scene – equal to nine stopsof aperture or shutter speed.