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Variable neutral density camera filter K&F Concept Nano-X 37 mm, adjustable ND
Summary description:
K&F Concept Nano-X variable neutral density (ND) filter, 37 mm thread size. Adjustable light reduction for long exposures and aperture control in bright conditions. Single-pack black metal filter designed for stills and video to control exposure, enable slower shutter speeds, and achieve motion blur or shallow depth-of-field effects with compatible lenses.