One half of the Hoya Half NDx4 filter is clear while the other is a 4x Neutral Density (2 stops) with a soft boundary between the two. It is particularly useful in landscape photography. When the ND half of the filter is placed on top, the sky will be darker.
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Hoya S-55NDH4X Overview
Hoya S-55NDH4X Specs
55 mm Filter Thread
|Box Dimensions (LxWxH)
3.52 x 2.85 x 0.55"
Hoya S-55NDH4X Reviews
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