Product Description
The Hoya Variable Density filter uses two polarizing layers to control the
amount of light that passes through the filter and into the camera lens. At it's
minimum effect the filter passes 1/3 of the light in a scene. That is equal to
1.5 stops on the aperture or shutter speed. At it maximum effect the filter
passes just 1/400 of the light in a scene. That is equal to 9 stops on the
aperture or shutter speed.
After the filter is mounted on the lens, turning the filter ring between Min
and Max can greatly control the amount of light entering the lens. With the
Hoya Variable Density filter it is possible to shoot with fast lenses like 50mm
f/1.4 lenses wide open at f/1.4 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. This is enough to create artistic blurring shots of
motion on water, cars, people or almost anything that moves. The creative
possibilities are endless.
The Hoya Variable Density filter uses high-quality optical glass from Hoya
Corporation, the worlds largest optical glass manufacturer and is available in
sizes 52mm to 82mm.
For best results Hoya recommends using a tripod when photographing at slow
shutter speeds.
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