Packagedincluded: 3 x Lens Filter for GoPro Hero 6/5 (ND4+ND8+ND16) 1 x User Manual Specifications: Model: ND4+ND8+ND16 Compatiblewith: For GoPro Hero 6/5 Material: PC Plastic + Optical Glass Size: 40.5x40x8mm/1.59"x1.57"x0.31" Features: - The ND filter is specifically made for GoPro Hero 6/5 Black. - Capture perfection with Hero 6/5 Black lens giltters. - Made with high grade multi-coated optical glass and PC frame. - Application Environment: seaside, mountains, snowfield, open field, etc. - Easy to install and remove, quick and convenient. Functions: * Uses a production grade glass with industry leading coated optics. This glass is perfectly neutral and offers a very low refractive index. Each glass is precisely rated to the exact light transmission needed to reduce 2-fstops (ND4), 3-fstops (ND8), and 4-fstops (ND16). * The Neutral Density filters for the Hero 6/5 Black enable you to at lower cinematic shutter speeds. These ND filters enable you to at shutter speeds of 1/60th to capture smooth cinematic content. * ND filters reduce the amount of visible light that enters the lens, allowing the user to utilize wider apertures or slower shutter speeds, particularly in bright conditions. * ND filters work especially well for portraits by allowing the photographer to reduce the depth of field, producing pleasant background blur while keeping the subject in sharp focus. * These filters are also often used to emphasize movement by permitting slow shutter speeds in bright light, giving life to photos that would otherwise look frozen in time. * This particular filter is multi-coated to minimize reflection on the filter surface, which reduces flare and ghosting, and produces sharp contrast and well-balanced . a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a