Fast Delivery Neutral Density Filter: Factory - Direct Customization Available Expert - Designed Neutral Density Filter with After - Sales Support

• Customization: Available
• Warranty: 1 Year
• Usage: Optical
• Color: Colourful
• Type: Color Filter
• Material: Glass
• Shape: Round
• Certification: RoHS, ISO, CE
• Customized: Customized
• Central Wavelength: 245-1064nm
• Half Bandwidth: 5nm 10nm; 20nm; 30nm, 50nm or Custom
• Cut-off Range: 200 - 1200nm
• Optical Density: Od3; Od4; Od5; Od6
• Transport Package: Foam Carton Inner, Then Cartons to Pack Them
• Specification: Customized
• Trademark: FS
• Origin: Tianjin
• Production Capacity: 2000 Pieces/Month
• Package Size: 20.00cm * 20.00cm * 20.00cm
• Package Gross Weight: 1.000kg

Product Description

Product Description

A neutral density filter is a specialized optical component designed to uniformly attenuate incident light intensity without altering its spectral composition (color). It is typically fabricated from optical glass, quartz, or plastic substrates, achieving attenuation through metal ion doping (absorptive type) or neutral absorption coatings (reflective type). Performance is characterized by optical density (OD) and transmittance (T%): OD is defined as OD = -lg(T%), e.g., OD=1 means 10% transmittance, OD=2 means 1% transmittance. Unlike color filters, ND filters attenuate all wavelengths equally, making them ideal for scenarios requiring light intensity control without color distortion, such as photography, laser power adjustment, optical measurements, and astronomical observation. They can be designed as fixed density (e.g., OD0.3, OD1.0) or variable density (adjustable via rotating polarizers), with some models featuring laser damage resistance for high-power-laser-applications.

Specification

Product Name	Neutral Density Filter
Angle of Incidence	0 Degree
Thickness	0.5~3.0mm or Custom
Dimension	Custom
Surface Quality	60-40
Transmittance	Tavg=3% or Custom
Wavelength	400-1100nm or Custom
Optical Density:	(OD) OD=log10 (1/T)

Optical Applications‌

· Photography & Videography:

· Shooting with large apertures in bright conditions (e.g., shallow depth of field in daytime)

· Long-exposure photography (e.g., capturing water motion or star trails)

· Controlling shutter speed in video to avoid overexposure

· Laser Systems:

· Adjusting laser power to safe levels for detectors

· Balancing intensity across multiple optical paths

· Optical Measurements:

· Calibrating photodetector sensitivity

· Controlling incident light for spectrometers to prevent saturation

· Astronomical Observation:

· Dimming bright celestial objects (e.g., the Sun, planets) to protect equipment

Company Profile

Tianjin Fushi Optics Co., Ltd.

Tianjin Fushi Optics Co., Ltd. is a comprehensive optoelectronic enterprise integrating R&D, production, sales, and after-sales service. Since its establishment in 2012, the company has been dedicated to technological innovation and industrial application in the field of optical components, with its manufacturing base located in China's core optical industry zone. The product portfolio covers a full range of optical basic components, including lenses, prisms, mirrors, optical windows, and filters, with particular technical expertise in the design and manufacturing of diffraction gratings.  

In 2017, Fushi Optics established a professional optical laboratory in Dongli District, Tianjin, committed to integrating optical theoretical research with engineering practice. After years of technical accumulation, the laboratory has gained wide academic recognition for its research achievements in spectral analysis, precision optical processing, and other fields, forming an integrated "industry-academia-research-application" technological innovation system. It continues to provide high-performance optical solutions for the optoelectronic industry.

FAQ

Q: How can I get samples from you?

Just send us your requirements, and we will send samples accordingly. 

 

Q: How long is your delivery time? · 

Regarding inventory, it is 3 working days;

For customized one, it's about 15-25 working days, depending on exact quantity and order date. 

 

Q: Can I customize the products based on my requirements?

Yes, we can customize the material, specifications and optical coating for your optical components as per your requirements.

Q: Are you a factory? 

Yes, we are a professional manufacturer of optical components. We have more than 20 years of experience in optical cold working.

 

Q: How do you control the quality?

More than four times of quality inspection during the production process; we can provide the Quality Test Report.

Packing & Delivery

We attach great importance to every detail in production and communication. Should you have any questions, suggestions, or comments, please do not hesitate to share them with us. Your feedback is invaluable in our pursuit to become a worthy, trusted, and reliable supplier. Thank you for your visit.