Find HS Code and trade information for nd filter

ND Filter

An ND filter (Neutral Density filter) is a photographic filter that reduces the intensity of all wavelengths of light equally. This allows for greater control of aperture, shutter speed, and ISO sensitivity in photography and videography.

Material:

• Optical Glass: Most high-quality ND filters are made from optical glass, offering minimal color cast and distortion.
• Resin: Lower-cost filters may utilize resin, though these can sometimes introduce color shifts or reduce image sharpness.
• Coating: Multiple layers of coating are applied to the glass or resin to reduce reflections and ghosting.

Purpose:

• Long Exposure Photography: The primary purpose is to enable longer shutter speeds in bright conditions, allowing for motion blur of subjects like water, clouds, or light trails.
• Wide Aperture in Bright Light: Permits the use of a wider aperture for shallow depth of field effects, even in strong sunlight.
• Videography: Maintaining a consistent shutter speed (often 180-degree rule) for natural motion blur when shooting video at a specific frame rate.
• Color Correction: Some ND filters can subtly adjust color balance.

Function:

ND filters work by absorbing a portion of the incoming light. They are rated by their density, expressed as a stop value (e.g., ND2, ND4, ND8) or as a fraction (e.g., 1/2, 1/4, 1/8). Each stop of density reduces the amount of light entering the camera lens by half.

• ND2: Reduces light by 1 stop.
• ND4: Reduces light by 2 stops.
• ND8: Reduces light by 3 stops.
• ND1000 (or higher): Significantly reduces light, enabling very long exposures.

Usage Scenarios:

• Landscape Photography: Blurring water, clouds, or creating ethereal effects.
• Portrait Photography: Achieving shallow depth of field in bright sunlight.
• Street Photography: Capturing motion blur of moving subjects.
• Video Production: Maintaining a consistent shutter speed for cinematic motion blur.
• High-Key Photography: Overexposing images intentionally.

Common Types:

• Screw-in Filters: Attach directly to the front of the lens using a threaded ring. Available in various sizes to match lens diameters.
• Slot-in Filters: Used with filter holders that attach to the lens. Allow for quick changes and stacking of multiple filters.
• Variable ND Filters: Offer adjustable density, providing flexibility in changing light conditions. These typically consist of two polarizing rings.
• Graduated ND Filters: Darken only a portion of the image, useful for balancing exposure between bright skies and darker foregrounds.
• Polarizing ND Filters: Combine the effects of an ND filter and a polarizing filter, reducing glare and reflections in addition to controlling light intensity.

Based on the provided information, determining the precise HS code for "nd filter" requires understanding its material, function, and application. Considering it's likely a component for spectacles, goggles, or photographic equipment, the following HS codes may be relevant:

• 9004900090: Spectacles, goggles and the like, corrective, protective or other: Other Other. This code covers a broad category of spectacles, goggles, and similar items not specifically classified elsewhere. If the nd filter is integrated into or intended for use with spectacles or goggles, this could be applicable. The total tax rate is 40.0%, comprised of a 2.5% base tariff and a 7.5% additional tariff, increasing to 30% after April 2, 2025.
• 9004900010: Spectacles, goggles and the like, corrective, protective or other: Other Safety glasses or safety goggles. If the nd filter is specifically designed for safety glasses or goggles, this code would be appropriate. The total tax rate is also 40.0%, with a 2.5% base tariff, a 7.5% additional tariff, and a 30% additional tariff after April 2, 2025.

According to the provided reference material, the HS code options related to 'nd filter' are limited, with only the following 2 found.

It is important to note that these codes are based on the assumption that the nd filter is used with spectacles or goggles. If the nd filter is a standalone component for photographic equipment or other applications, further clarification of its intended use and material composition would be necessary to determine the correct HS code.