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Buying Neutral Density Filters

Top-level product category: icon optical components and devices

More general product categories: optical attenuators, optical 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.

1. Understand the technical background

It is important to sufficiently understand the technology before buying.

Use the comprehensive learning resources of RP Photonics:

encyclopedia article neutral density filters optical attenuators optical filters

If you need personal help, contact RP Photonics to get technical consultancy.

2. Define your requirements

It is essential to fully understand and clearly define your requirements before you buy.

We recommend that you develop a list of clear specifications according to your specific needs, against which you can later check the suitability of found product offers:

To help you, we have already listed some aspects we recommend you consider when buying neutral density filters. Of course, there may be other aspects that are relevant to your specific case.

This list is for your own preparation, and can later (possibly in modified form) be used for quotation requests to suppliers.

Otherwise, you will need to talk to your technical colleagues.

If you cannot sufficiently clarify your requirements, you may want to get technical consultancy from RP Photonics.

You find these buttons in the supplier list below or under "3. Find suitable suppliers".

3. Find suitable suppliers

We suggest three steps:

  • Below, you can find our list of suppliers for neutral density filters. Use the checkboxes to mark possibly suitable suppliers.
  • The selected suppliers will appear below this list, along with your list of specifications. You can then indicate which specifications they meet according to your research. (You should finalize your specifications before doing this.)
  • Based on the results, you can finally choose a supplier that is hopefully a good enough fit.

Selected suppliers:

(none so far)

Decision

The most suitable supplier you found:

Comments, e.g. reasons for your choice, or things which still need to be checked:

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 Optics
101 East Gloucester Pike
Barrington, NJ 08007
United States
Profile page  Website  

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)!

neutral density 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.

Product-specific web page

Bringing quality into focus

Knight Optical (USA) LLC
1130 Ten Rod Road
Suite D102
North Kingstown
Rhode Island 02852
United States
Profile page  Website  

See the company profile page for additional contact information.

See us at LASER World of Photonics 2025 in Munich, June 24–27 (booth A3.533)!

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.

Product-specific web page

Your reliable partner for photonics innovations!

EKSMA Optics, UAB
Dvarcioniu St. 2B
LT-10233 Vilnius
Lithuania
Profile page  Website  

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)!

neutral density filters

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

Product-specific web page
Hangzhou Shalom Electro-optics Technology Co., Ltd.
A635, Boke Mansion
No. 9 Xiyuan Road
Xihu District, Hangzhou 310030
China
Profile page  Website  

See us at LASER World of Photonics 2025 in Munich, June 24–27 (hall B1, booth 258)!

neutral density filters

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
Profile page  Website  
CVI Laser Optics
United States
Dynasil
United States
Profile page  Website  
eSource Optics
United States
Profile page  Website  
FireflySci, Inc.
United States
GMP SA, Büro Zürich
Switzerland
IL Photonics
Israel
Profile page  Website  
ios Optics
United States
Profile page  Website  
JG International
China
Laser Components GmbH
Germany
Profile page  Website  
LC-Tec
Sweden
Profile page  Website  
Maier Photonics, Inc.
United States
Metrolux
Germany
MICROS Optics GmbH & Co. KG
Germany
Mountain Photonics GmbH
Germany
Omega Optical, Inc.
United States
Profile page  Website  
Optics and Allied Engineering Pvt. Ltd.
India
Profile page  Website  
Optometrics Corporation
United States
Profile page  Website  
Panel Graphic Limited
United Kingdom
Profile page  Website  
Penn Optical Coatings
United States
Reliable Instruments House
India
Profile page  Website  
Reynard Corporation
United States
Profile page  Website  
Schneider Kreuznach
Germany
Schott AG
Germany
Shenzhen Zentech Optics Ltd.
China
Profile page  Website  
Sintec Optronics Pte Ltd (HQ)
Singapore
Solaris Optics S.A.
Poland
Spectrogon
Sweden
Sydor Optics
United States
Profile page  Website  
Tian Cheng Optic Co., Ltd.
China
VisiMax Technologies, Inc.
United States
Profile page  Website  
Hangzhou Yong Hee Photonics Co., Ltd.
China
Yutai Optics
China

If any displayed information is incorrect (e.g., a listed supplier does not offer such products) or legally problematic, please notify RP Photonics so that the problem can be solved.



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