Penta Prism
A penta prism made of N-BK7 glass deviates an incident beam by exactly 90 degrees regardless of prism orientation, used in viewfinders and precision alignment systems. It is an unmounted optical prism. This product falls under tariff item 9001.90.00 as an unmounted optical element.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as part of a viewfinder
Prisms for specific instruments may be classified with those instruments.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Verify the prism is unmounted; if it is part of a viewfinder assembly, classification may shift
• Provide CBSA with the prism's material and angle specifications
• If imported with a mount, consider heading 9002
Related Products under Tariff item 9001.90.00
Abbe-Koenig Prism
An Abbe-Koenig prism is a Porro-type prism with air-spaced roof surfaces that provides total internal reflection while maintaining high light transmission. It is an unmounted optical prism used in high-performance binoculars and other precision optical instruments. This product falls under tariff item 9001.90.00 as an unmounted optical element of any material.
Amici Roof Prism
An Amici roof prism is a compound prism that combines right-angle reflection with roof prism functionality to erect images in compact optical instruments. It is an unmounted optical prism featuring both total internal reflection and image erecting properties. This product falls under tariff item 9001.90.00 as an unmounted optical element.
Anamorphic Prism Pair
An anamorphic prism pair consists of matched wedge prisms used to circularize elliptical laser beams by expanding or compressing the beam in orthogonal directions. These are unmounted individual prisms commonly used in laser diode systems. This product falls under tariff item 9001.90.00 as unmounted optical prisms.
Brewster Prism
A Brewster prism is cut at Brewster's angle to minimize reflection losses for p-polarized light, making it ideal for laser cavities. It is an unmounted dispersion prism optimized for specific polarization states. This product falls under tariff item 9001.90.00 as an unmounted optical prism.
Calcium Fluoride Unmounted Lens
An unmounted calcium fluoride lens for excimer lasers and spectroscopy, offering excellent UV transmission down to 130nm. It is an unmounted optical element of crystalline material, falling under tariff item 9001.90.00.
Corner Cube Prism
A corner cube prism is a solid glass prism with three mutually perpendicular faces that retroreflects incident light parallel to itself regardless of the angle of incidence. It is an unmounted optical prism used in surveying, alignment, and laser applications. This product falls under tariff item 9001.90.00 as an unmounted optical element.