【16.5 stops ND filter】Ultra-dark with an exposure factor of 16.5 f-stops.
【Optical Glass】ND100000 Use optical glass safer than Bard film, ensuring clearer HD photos.
【18-Layer Coating】Filter with 18-layer coating technology with 0.6% reflectivity to avoid severe glare and ghosting during shooting.
【3.3mm slim frame】Double threaded frame to allow additional filters or hoods, the surface of the frame is oxidized and sandblasted, which can effectively avoid the entry of stray light to a large extent.
【3x Cleaning Cloth】3 pieces of vacuum-packed cleaning cloth included, safe and clean, to ensure no damage to the lens/filter.