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Available in two, three, four, six, 10 and 15-stop strengths, ProGlass IRND
filters are designed to extend shutter speeds and allow for the creative
blurring of any area of the frame that is moving. Depending on the length of
shutter speed, subjects can become soft and ghost-like – or even disappear
entirely. Clouds, waterfalls, rivers and the sea are typical subjects, but the
filters can also be used in the urban environment to depict movement in
traffic or crowds of people.
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