K&F Concept 77mm Variable ND Filter
Adjustable 77mm variable neutral density filter (2-400 density) for photography, with mounted rotating optical elements. Under HTS 9002.20.40.00 as a photographic filter accessory allowing variable light control. Dual-layer glass construction mounted in aircraft aluminum frame.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If variable mechanism imported separately
Adjustable filter rings or mechanisms classify as general photographic parts.
If for precision light measurement in lab spectrophotometers
Chapter exclusions send variable attenuators for measuring instruments to 9031.
If rotating mechanism dominates as valve-like control
Pure mechanical light control valves without optical function classify under valves.
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Import Tips & Compliance
• Specify variable range (e.g
• ND2-400) and test cross-polarization certificates
• Declare as 'photographic use' to avoid shifting to scientific instrument filters
• Check for Section 301 tariffs if manufactured in specific Chinese facilities
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