Buying Neutral Density Filters
Neutral density filters are optical attenuators that provide consistent attenuation across a wide wavelength range, such as the visible or infrared spectrum. They can be either absorbing or reflective, depending on power handling requirements, and are used in photography and various photonics applications.
Making Good Purchase Decisions
As the most professional photonics purchasing portal, RP Photonics helps you to not only to find all relevant suppliers (not limited to our advertisers), but also to make good purchasing decisions.
NEW: Structured Decision Process
Purchasing involves a lot of responsibility. We recommend that you apply best practice by using the following structured process: Go through the following expandable sections, complete the form and finally come to a purchase decision. You can then print that to a PDF for documenting the process.
Our article on best practices for purchasing and another one explaining this tool give you valuable insights.
Suppliers for Neutral Density Filters
39 suppliers for neutral density filters (ND filters) are listed in the RP Photonics Buyer's Guide, out of which 4 present their product descriptions. Both manufacturers and distributors can be registered.
Suppliers with Advertising Package
presenting their product descriptions
![]() The Future Depends on Optics Edmund Optics101 East Gloucester Pike Barrington, NJ 08007 United States See us at CLEO 2025 in Long Beach (CA), USA, May 4–9 (booth 317), Automate 25 in Detroit (MI), USA, May 12–15 (booth 4400), SPS Italia in Parma, Italy, May 13–15 (hall 5, booth 055), LASER World of Photonics 2025 in Munich, June 24–27 (booth B1.416) and CLEO 2025 in Long Beach (CA), USA, May 4–9 (booth 317)! | ![]() 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. Product-specific web page |
![]() Bringing quality into focus Knight Optical (USA) LLC1130 Ten Rod Road Suite D102 North Kingstown Rhode Island 02852 United States See us at LASER World of Photonics 2025 in Munich, June 24–27 (booth A3.533)! | ![]() 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. Product-specific web page |
![]() Your reliable partner for photonics innovations! EKSMA Optics, UABDvarcioniu St. 2B LT-10233 Vilnius Lithuania See us at LASER World of Photonics 2025 in Munich, June 24–27 (booth A2.107) and CLEO 2025 in Long Beach (CA), USA, May 4–9 (booth 205)! | ![]() EKSMA Optics has standard neutral density (ND) reflective (at 400–2000 nm) and absorption type (at 450–650 nm) filters. Product-specific web page |
![]() A635, Boke Mansion No. 9 Xiyuan Road Xihu District, Hangzhou 310030 China See us at LASER World of Photonics 2025 in Munich, June 24–27 (hall B1, booth 258)! | ![]() Hangzhou Shalom EO offers neutral density filters which enable effective attenuation of light intensities without compromising spectral integrities. Our neutral density filters cover wide spectral ranges, UV ND filters (250–380 nm), VIS ND filters (400–700 nm), VIS-NIR ND filters (400–1100 nm) are available. Continuously variable neutral density filters like circular variable ND filters and rectangular variable ND filters are also accessible. In addition, Shalom EO provides colored glass absorbtive ND filters made of colored glass materials equivalent to SCHOTT or HOYA and germanium substrate IR ND filters, which utilizes a combination of absorption and reflection to reduce the intensities of light. Product-specific web page |
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Other Suppliers
Andover Corporation United States |
Beijing Golden Way Scientific Co. Ltd. China |
CASIX Inc. China |
CVI Laser Optics United States |
Dynasil United States |
eSource Optics United States |
FireflySci, Inc. United States |
GMP SA, Büro Zürich Switzerland |
IL Photonics Israel |
ios Optics United States |
JG International China |
Laser Components GmbH Germany |
LC-Tec Sweden |
Maier Photonics, Inc. United States |
Metrolux Germany |
MICROS Optics GmbH & Co. KG Germany |
Mountain Photonics GmbH Germany |
Omega Optical, Inc. United States |
Optics and Allied Engineering Pvt. Ltd. India |
Optometrics Corporation United States |
Panel Graphic Limited United Kingdom |
Penn Optical Coatings United States |
Reliable Instruments House India |
Reynard Corporation United States |
Schneider Kreuznach Germany |
Schott AG Germany |
Shenzhen Zentech Optics Ltd. China |
Sintec Optronics Pte Ltd (HQ) Singapore |
Solaris Optics S.A. Poland |
Spectrogon Sweden |
Sydor Optics United States |
Tian Cheng Optic Co., Ltd. China |
VisiMax Technologies, Inc. United States |
Hangzhou Yong Hee Photonics Co., Ltd. China |
Yutai Optics China |