Premium Japanese Glass The surface of the filter is processed with 32 layers of nano-coating to achieve water and oil repellency.
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5 levels (1.5 - 2.7 stops) The slow shutter is used in high light environments to smooth out the stream of water in clouds and waterfalls, and to show light marks on the subject.
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Thin Frame & Low Reflective Made of ultra-thin Japanese glass only 7 mm (16 mm) wide angle lenses without vignetting (vignetting may occur on wide-angle lenses below 16 mm)
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