William Optics ZenithStar 73mm Triplet Refractor
Apocromatic triplet refractor telescope with 73mm aperture for high-contrast astrophotos and visual astronomy. Under HTS 9005.80.60.00 as other astronomical optical telescope. Excludes technical or machine uses per chapter notes.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If coatings applied as synthetic pigments
Optical coatings if separate may classify by material, but assembled in 9005.
If accessories for geodetic surveying
Parts for specific 9015 instruments take precedence.
If housings suitable for multiple chapter 90 uses
Non-principal parts go to 9033 per note 2(c).
Not sure which classification is right?
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Import Tips & Compliance
• Triplet lens assembly—detail in BOM to prevent lens-only classification
• Astrophotography focus; include sample images in docs
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