49mm Variable ND Filter ND2- ND400 High Definition Nano-Xcel Adjustable Fader Neutral Density Lens Filters(HD Nano-Xcel version)

SKU: KF01.1458

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K&F Concept ND2-ND400 lens filter controls the amount of the light that enters into camera lens with two sets of polarizing glass of high transparency. 
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From 1-5 stops, there will be a slight X cross for lens under 24mm. An X cross will appear at the highest stop and can be removed by rotating the filter ring, which is a normal situation instead of a quality issue. 
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Tested with Nikon Z 7 and Nikor 14-30mm Sline, dark corners are not obvious for 14mm and no dark corners for 16mm.