Where to Buy Neutral Density Filters

Knight Optical has a range of neutral density (ND) filters available from our stock catalogue, including glass, gelatin, and metallic ND filters. Our absorptive glass ND filters are manufactured from Schott (or equivalent) filter glass and work by attenuating the light through absorption, unlike our metallic ND filters which reflect unwanted light. Custom ND filters are also available.

Shalom EO offers both reflective and absorbing type neutral density filters for use in a wide wavelength range. Our reflective type filter product series consist of UV ND filters (250-380 nm), VIS ND filters(400-700 nm), VIS-NIR ND filters (400-1100 nm), circular variable ND filters, rectangular continuously variable ND filters, and germanium substrate IR reflection ND filters. Substrate materials include UV fused silica, BK7 and germanium. As for filters of absorbing type, we offer colored glass absorbing filters.

Edmund Optics offers a wide variety of neutral density filters for ultraviolet (UV), visible and infrared applications. Neutral density filter kits are available, which include a number of filters in a range of optical densities. Stepped ND filters are also available, which offer a number of optical densities on a single filter, ideal for lab or R&D integration.

See us at CLEO 2024 in Charlotte, North Carolina, United States, May 7–9 (booth 116), SPS Italia 2024 in Parma, Italy, May 28–30 (booth H069, hall 5) and Optics and Photonics Days 2024 in Helsinki, Finland, May 28–30 (booth 12)!

EKSMA Optics has standard neutral density (ND) reflective (at 400–2000 nm) and absorption type (at 450–650 nm) filters.

See us at CLEO 2024 in Charlotte, North Carolina, United States, May 7–9 (booth 305)!