ND Filters

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Optical filters that aim to produce a constant reduction in the intensity of light across a specific (typically broadband) wavelength range.

Product	Optical Density	Substrate	Transmittance	Availability	Price (USD)
Absorptive ND Filter	1.5	-	3%	In stock	$ 60.00
Product Code Wavelength Range 300 - 1200 nm (Blocking Range) Transmittance 3% Diameter 25 mm Dimensions Ø 25 mm Optical Density 1.5 Blocking Wavelength Range 300 - 1200 nm Shape Round Mount Non-Threaded Mount, 25 mm Supplier Location Vermont, USA Selected Product Option Mounted 25mm R R=Mounted in Ring See product details More from Chroma
Absorptive ND Filter	1	Color Glass	10% (546 nm)	Contact Supplier	$ 28.00
Product Code Wavelength Range 450 - 650 nm Center Wavelength 450 - 650 nm Transmission Wavelength 546 nm Transmittance 10% (546 nm) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Parallelism 3' Optical Density 1 Substrate Color Glass Shape Round Surface Quality 60-40 scratch-dig Clear Aperture Ø 22.86 mm Surface Irregularity λ (633 nm, Flatness) Supplier Location Lithuania See product details More from EKSMA Optics
Absorptive ND Filter	3	Float Glass	0.1% (Minimum)	Contact Supplier	Add to cart to request quote
Product Code Wavelength Range 400 - 700 nm (Operating Range) Coating Inconel Reflectance 55% Transmittance 0.1% (Minimum) Dimensions 50 x 50 mm (±0.5 mm) Thickness 1.5 mm Parallelism < 3' Optical Density 3 Substrate Float Glass Shape Square Surface Quality 80-50 scratch-dig Clear Aperture 40 x 40 mm Supplier Location Vermont, USA See product details More from omega optical
Absorptive ND Filter	1.3	-	5%	In stock	$ 150.00
Product Code Wavelength Range 300 - 1200 nm (Blocking Range) Transmittance 5% Diameter 50 mm Dimensions Ø 50 mm Optical Density 1.3 Blocking Wavelength Range 300 - 1200 nm Shape Round Mount Non-Threaded Mount, 50 mm Supplier Location Vermont, USA Selected Product Option Mounted 50mm R R=Mounted in Ring See product details More from Chroma
Absorptive ND Filter	0.699	Optical Glass (N/S)	20% (1064 nm)	In stock	$ 92.00
Product Code Wavelength Range 1064 nm Transmission Wavelength 1064 nm Transmittance 20% (1064 nm) Diameter 25 mm Dimensions Ø 25 mm Optical Density 0.699 Substrate Optical Glass (N/S) Shape Round Mount Non-Threaded Mount, 25mm Clear Aperture Ø 17 mm Weight 7 g Supplier Location California, USA See product details More from OptoSigma
Absorptive ND Filter	2.5 (Average)	Neutral Density Glass	0.3% (Average)	In stock	$ 48.76
Product Code Wavelength Range 400 - 700 nm (Blocking Range) Coating Uncoated Transmittance 0.3% (Average) Diameter 25 mm Dimensions Ø 25 mm Thickness 2.5 mm Optical Density 2.5 (Average) Substrate Neutral Density Glass Blocking Wavelength Range 400 - 700 nm Shape Round Mount Threaded Mount, C-Mount Surface Quality 80-50 scratch-dig Thickness Tolerance ±0.5 mm Refractive Index 1.51 Optical Density Tolerance ±0.05 Supplier Location New Jersey, USA See product details More from Edmund Optics
Absorptive ND Filter	1	Germanium	10%	Contact Supplier	Add to cart to request quote
Product Code Transmittance 10% Diameter 50 mm Dimensions Ø 50 mm Optical Density 1 Substrate Germanium Shape Round Supplier Location Vermont, USA See product details More from omega optical
Absorptive ND Filter	0.05	Color Glass	89% (546 nm)	Contact Supplier	$ 74.00
Product Code Wavelength Range 450 - 650 nm Center Wavelength 450 - 650 nm Transmission Wavelength 546 nm Transmittance 89% (546 nm) Diameter 50.8 mm (2") Dimensions Ø 50.8 mm (2") Parallelism 3' Optical Density 0.05 Substrate Color Glass Shape Round Surface Quality 60-40 scratch-dig Clear Aperture Ø 45.72 mm Surface Irregularity λ (633 nm, Flatness) Supplier Location Lithuania See product details More from EKSMA Optics
Absorptive ND Filter	5	-	0.001%	In stock	$ 24.63
Product Code Wavelength Range 400 - 650 nm (Blocking Range) Transmittance 0.001% Diameter 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") Parallelism < 10'' Optical Density 5 Blocking Wavelength Range 400 - 650 nm Shape Round Mount Unmounted Surface Quality 40-20 scratch-dig Supplier Location New Jersey, USA See product details More from Thorlabs
Absorptive ND Filter	0.5	-	32%	In stock	$ 100.00
Product Code Wavelength Range 300 - 1200 nm (Blocking Range) Transmittance 32% Diameter 32 mm Dimensions Ø 32 mm Optical Density 0.5 Blocking Wavelength Range 300 - 1200 nm Shape Round Mount Non-Threaded Mount, 32 mm Supplier Location Vermont, USA Selected Product Option Mounted 32mm R R=Mounted in Ring See product details More from Chroma
Absorptive ND Filter	2	Color Glass	1% (546 nm)	4 - 5 days	$ 29.00
Product Code Wavelength Range 450 - 650 nm Center Wavelength 450 - 650 nm Transmission Wavelength 546 nm Transmittance 1% (546 nm) Diameter 25.4 mm (1") Dimensions Ø 25.4 mm (1") Parallelism 3' Optical Density 2 Substrate Color Glass Shape Round Surface Quality 60-40 scratch-dig Clear Aperture Ø 22.86 mm Surface Irregularity λ (633 nm, Flatness) Supplier Location Lithuania See product details More from EKSMA Optics
Absorptive ND Filter	0.47 (1200 nm, Center)	Neutral Density Glass	50% (400 - 700 nm, Average)	In stock	$ 171.72
Product Code Wavelength Range 750 - 1550 nm Coating BBAR (750 - 1550 nm) Reflectance < 0.7% (750 - 1550 nm, Average) < 1.5% (750 - 800 nm, Absolute) < 1% (800 - 1550 nm, Absolute) Transmittance 50% (400 - 700 nm, Average) Diameter 50 mm Dimensions Ø 50 mm Thickness 2.5 mm Optical Density 0.47 (1200 nm, Center) Substrate Neutral Density Glass Blocking Wavelength Range 400 - 700 nm Shape Round Surface Quality 80-50 scratch-dig Thickness Tolerance ±0.5 mm Refractive Index 1.504 Coating Features Broadband Supplier Location New Jersey, USA See product details More from Edmund Optics
Absorptive ND Filter	3.84 (1550 nm)	KG3	0.01% (1550 nm)	In stock	$ 37.49
Product Code Wavelength Range 1000 - 2600 nm Center Wavelength 1550 nm Coating Uncoated Transmittance 0.01% (1550 nm) Diameter 12.7 mm (0.5") Dimensions Ø 12.7 mm (0.5") Thickness 2.6 mm (Substrate) Parallelism < 10'' Optical Density 3.84 (1550 nm) Substrate KG3 Blocking Wavelength Range 1000 - 2600 nm Shape Round Mount Unmounted Surface Quality 40-20 scratch-dig Supplier Location New Jersey, USA See product details More from Thorlabs
Absorptive ND Filter	0.4	-	40%	In stock	$ 60.00
Product Code Wavelength Range 300 - 1200 nm (Blocking Range) Transmittance 40% Diameter 12.5 mm Dimensions Ø 12.5 mm Optical Density 0.4 Blocking Wavelength Range 300 - 1200 nm Shape Round Mount Non-Threaded Mount, 12.5 mm Supplier Location Vermont, USA Selected Product Option Mounted 12.5mm R R=Mounted in Ring See product details More from Chroma
Absorptive ND Filter	0.05	Color Glass	89% (546 nm)	4 - 5 days	$ 73.00
Product Code Wavelength Range 450 - 650 nm Center Wavelength 450 - 650 nm Transmission Wavelength 546 nm Transmittance 89% (546 nm) Dimensions 50.8 x 50.8 mm Parallelism 3' Optical Density 0.05 Substrate Color Glass Shape Square Surface Quality 60-40 scratch-dig Clear Aperture 45.72 x 45.72 mm Diameter Tolerance +0/-0.2 mm Surface Irregularity λ (633 nm, Flatness) Supplier Location Lithuania See product details More from EKSMA Optics
ND Filter Film	1 (546 nm)	Wratten 2	10% (546 nm)	Contact Supplier	$ 51.92
Product Code Wavelength Range 200 - 2700 nm Transmittance 10% (546 nm) Dimensions 50 x 50 x 0.1 mm Thickness 0.1 mm Optical Density 1 (546 nm) Substrate Wratten 2 Shape Square Clear Aperture 45 x 45 x 0.09 mm Length 50 mm Width 50 mm Length Tolerance ±1 mm Width Tolerance ±1 mm Supplier Location United Kingdom; Rhode Island, USA See product details More from Knight Optical
Absorptive ND Filter	2	Optical Glass (N/S)	1% (400 - 700 nm)	6 - 12 weeks	$ 31.00
Product Code Wavelength Range 380 - 700 nm Transmission Wavelength 400 - 700 nm Transmittance 1% (400 - 700 nm) Diameter 15 mm Dimensions Ø 15 mm Optical Density 2 Substrate Optical Glass (N/S) Shape Round Mount Unmounted Weight 5 g Transmittance Tolerance ±0.5% Supplier Location California, USA See product details More from OptoSigma
Absorptive ND Filter	1.02 (900 nm, Center)	Neutral Density Glass	12.5% (400 - 700 nm, Average)	In stock	$ 58.30
Product Code Wavelength Range 600 - 1050 nm Coating BBAR (600 - 1050 nm) Reflectance < 0.5% (600 - 1050 nm, Average) Transmittance 12.5% (400 - 700 nm, Average) Diameter 12.5 mm Dimensions Ø 12.5 mm Thickness 2.5 mm Optical Density 1.02 (900 nm, Center) Substrate Neutral Density Glass Blocking Wavelength Range 400 - 700 nm Shape Round Surface Quality 80-50 scratch-dig Thickness Tolerance ±0.5 mm Refractive Index 1.51 Coating Features Broadband Supplier Location New Jersey, USA See product details More from Edmund Optics
Absorptive ND Filter	1.5	-	3%	In stock	$ 150.00
Product Code Wavelength Range 300 - 1200 nm (Blocking Range) Transmittance 3% Diameter 45 mm Dimensions Ø 45 mm Optical Density 1.5 Blocking Wavelength Range 300 - 1200 nm Shape Round Mount Non-Threaded Mount, 45 mm Supplier Location Vermont, USA Selected Product Option Mounted 45mm R R=Mounted in Ring See product details More from Chroma
Absorptive ND Filter	1	Filter Glass	10%	1 weeks	$ 101.00
Product Code Wavelength Range 450 - 700 nm Transmittance 10% Diameter 25 mm Dimensions Ø 25 mm Thickness 1.96 mm Parallelism 30'' Optical Density 1 Substrate Filter Glass Shape Round Mount Unmounted Surface Quality 80-50 scratch-dig Clear Aperture 22.5 mm Transmitted Wavefront Error λ/4 (per inch) Applications Imaging, Machine Vision Surface Irregularity λ/4 (Flatness) Operating Temperature 100 °C (Maximum) Supplier Location New Hampshire, USA See product details More from Andover