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Neutral Density Filters

A neutral-density filter (nd filter) reduces the intensity of a wide spectrum of light equally. We offer standard ND filters for UV/VIS applications including absorptive, metallic on glass or fused-silica, and variable linear or circular. Please see our Neutral Density Filter Guide for more information.

Neutral Density Filters

A neutral-density filter (nd filter) reduces the intensity of a wide spectrum of light equally. We offer standard ND filters for UV/VIS applications including absorptive, metallic on glass or fused-silica, and variable linear or circular. Please see our Neutral Density Filter Guide for more information.

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Absorptive ND Filters

Low cost ND filters ideal for OEM integration
Precision polished for demanding research applications
Broadband attenuation, visible to near IR

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	Compare	Description		Avail.	Price	Qty.
		FSR-OD200 Neutral Density Filter, Absorptive, 25.4 mm, 2.0 OD at 546.1 nm		Show	$40		FSR-OD200 Neutral Density Filter, Absorptive, 25.4 mm, 2.0 OD at 546.1 nm Show $40
		FSR-OD100 Neutral Density Filter, Absorptive, 25.4 mm, 1.0 OD at 546.1 nm		In Stock	$40		FSR-OD100 Neutral Density Filter, Absorptive, 25.4 mm, 1.0 OD at 546.1 nm In Stock $40
		FR-OD05 Neutral Density Filter, Absorptive, 12.7 mm, 0.04 OD at 546.1 nm		In Stock	$30		FR-OD05 Neutral Density Filter, Absorptive, 12.7 mm, 0.04 OD at 546.1 nm In Stock $30
		FSQ-OD100 Neutral Density Filter, Absorptive, 50.8 x 50.8 mm, 1.0 OD at 546.1 nm		In Stock	$85		FSQ-OD100 Neutral Density Filter, Absorptive, 50.8 x 50.8 mm, 1.0 OD at 546.1 nm In Stock $85
		FSR-OD300 Neutral Density Filter, Absorptive, 25.4 mm, 3.0 OD at 546.1 nm		In Stock	$40		FSR-OD300 Neutral Density Filter, Absorptive, 25.4 mm, 3.0 OD at 546.1 nm In Stock $40

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Absorptive ND Filters

UV Fused Silica Metallic ND Filters

Broadband attenuation from 350-2000 nm
Metallic neutral density coating
Low wavefront distortion

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	Compare	Description		Avail.	Price	Qty.
		FRQ-ND10 Metallic ND Filter, UV Fused Silica, 25.4 mm, 1.0 OD at 632.8 nm		In Stock	$71		FRQ-ND10 Metallic ND Filter, UV Fused Silica, 25.4 mm, 1.0 OD at 632.8 nm In Stock $71
		FRQ-ND30 Metallic ND Filter, UV Fused Silica, 25.4 mm, 3.0 OD at 632.8 nm		In Stock	$71		FRQ-ND30 Metallic ND Filter, UV Fused Silica, 25.4 mm, 3.0 OD at 632.8 nm In Stock $71
		FSQ-ND40 Metallic ND Filter, UV Fused Silica, 50.8x50.8 mm, 4.0 OD at 632.8 nm		2 Weeks	$165		FSQ-ND40 Metallic ND Filter, UV Fused Silica, 50.8x50.8 mm, 4.0 OD at 632.8 nm 2 Weeks $165
		FRQ-ND20 Metallic ND Filter, UV Fused Silica, 25.4 mm, 2.0 OD at 632.8 nm		1 Week	$71		FRQ-ND20 Metallic ND Filter, UV Fused Silica, 25.4 mm, 2.0 OD at 632.8 nm 1 Week $71
		FRQ-ND02 Metallic ND Filter, UV Fused Silica, 25.4 mm, 0.2 OD at 632.8 nm		In Stock	$71		FRQ-ND02 Metallic ND Filter, UV Fused Silica, 25.4 mm, 0.2 OD at 632.8 nm In Stock $71

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UV Fused Silica Metallic ND Filters

Schott Borofloat Glass Metallic ND Filters

Economy neutral density filters
1 inch diameter ﬁts mirror mounts and ﬁlter wheels
Broad 400 to 2000 nm wavelength range

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	Compare	Description		Avail.	Price	Qty.
		5240 Neutral Density Filter, 1.0 Optical Density, 1.0 in. Diameter		In Stock	$46		5240 Neutral Density Filter, 1.0 Optical Density, 1.0 in. Diameter In Stock $46
		5230 Neutral Density Filter, 0.04 Optical Density, 1.0 in. Diameter		In Stock	$46		5230 Neutral Density Filter, 0.04 Optical Density, 1.0 in. Diameter In Stock $46
		5235 Neutral Density Filter, 0.5 Optical Density, 1.0 in. Diameter		In Stock	$46		5235 Neutral Density Filter, 0.5 Optical Density, 1.0 in. Diameter In Stock $46
		5242 Neutral Density Filter, 2.0 Optical Density, 1.0 in. Diameter		In Stock	$46		5242 Neutral Density Filter, 2.0 Optical Density, 1.0 in. Diameter In Stock $46
		5241 Neutral Density Filter, 1.5 Optical Density, 1.0 in. Diameter		In Stock	$46		5241 Neutral Density Filter, 1.5 Optical Density, 1.0 in. Diameter In Stock $46

Viewing5 of 10 Products | View All 10 Products

Schott Borofloat Glass Metallic ND Filters

Optical Crown Glass Metallic ND Filters

Cost effective optical crown glass
Broadband attenuation, visible to near IR
Metallic neutral density coating

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	Compare	Description		Avail.	Price	Qty.
		FBS-ND10 ND Filter, Metallic, Optical Crown Glass, 50.8 x 50.8 mm, 1.0 OD		In Stock	$74		FBS-ND10 ND Filter, Metallic, Optical Crown Glass, 50.8 x 50.8 mm, 1.0 OD In Stock $74
		FBR-ND30 ND Filter, Metallic, Optical Crown Glass, 25.4 mm, 3.0 OD at 632.8 nm		In Stock	$59		FBR-ND30 ND Filter, Metallic, Optical Crown Glass, 25.4 mm, 3.0 OD at 632.8 nm In Stock $59
		FBR-ND10 ND Filter, Metallic, Optical Crown Glass, 25.4 mm, 1.0 OD at 632.8 nm		In Stock	$59		FBR-ND10 ND Filter, Metallic, Optical Crown Glass, 25.4 mm, 1.0 OD at 632.8 nm In Stock $59
		FBS-ND30 ND Filter, Metallic, Optical Crown Glass, 50.8 x 50.8 mm, 3.0 OD		In Stock	$74		FBS-ND30 ND Filter, Metallic, Optical Crown Glass, 50.8 x 50.8 mm, 3.0 OD In Stock $74
		FBR-ND20 ND Filter, Metallic, Optical Crown Glass, 25.4 mm, 2.0 OD at 632.8 nm		In Stock	$59		FBR-ND20 ND Filter, Metallic, Optical Crown Glass, 25.4 mm, 2.0 OD at 632.8 nm In Stock $59

Viewing5 of 22 Products | View All 22 Products

Optical Crown Glass Metallic ND Filters

Infrared ND Filters

Attenuate IR radiation from 2 to 14 µm
Precision Germanium substrates
Spectrally neutral vacuum deposited reflective coating

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	Compare	Description		Avail.	Price	Qty.
		FIR-ND30 Infrared Neutral Density Filter, 25.4 mm, 3.0 OD, ±3% Tolerance		In Stock	$852		FIR-ND30 Infrared Neutral Density Filter, 25.4 mm, 3.0 OD, ±3% Tolerance In Stock $852
		FIR-ND10 Infrared Neutral Density Filter, 25.4 mm, 1.0 OD, ±3% Tolerance		In Stock	$852		FIR-ND10 Infrared Neutral Density Filter, 25.4 mm, 1.0 OD, ±3% Tolerance In Stock $852
		FIR-ND03 Infrared Neutral Density Filter, 25.4 mm, 0.3 OD, ±3% Tolerance		In Stock	$852		FIR-ND03 Infrared Neutral Density Filter, 25.4 mm, 0.3 OD, ±3% Tolerance In Stock $852
		FIR-ND06 Infrared Neutral Density Filter, 25.4 mm, 0.6 OD, ± 3% Tolerance		In Stock	$852		FIR-ND06 Infrared Neutral Density Filter, 25.4 mm, 0.6 OD, ± 3% Tolerance In Stock $852
		NDIR10-03 Neutral Density Filter, Infrared, 25 mm, 0.3 OD, ±4.00% Tolerance		In Stock	$505		NDIR10-03 Neutral Density Filter, Infrared, 25 mm, 0.3 OD, ±4.00% Tolerance In Stock $505

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Infrared ND Filters

Circular Variable Metallic ND Filters

Filter OD varies continuously with rotation angle
Dual purposed as variable beamsplitter
BK7 and Fused Silica substrate options

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	Compare	Description		Avail.	Price	Qty.
		50Q04AV.2 ND Optical Filter, Circular Variable Metallic, UV Silica, 127 mm, 0.05-2.0 OD		2 Weeks	$2,521		50Q04AV.2 ND Optical Filter, Circular Variable Metallic, UV Silica, 127 mm, 0.05-2.0 OD 2 Weeks $2,521
		50G02AV.1 ND Optical Filter, Circular Variable Metallic, N-BK7, 127 mm, 0.05-1.0 OD		In Stock	$2,192		50G02AV.1 ND Optical Filter, Circular Variable Metallic, N-BK7, 127 mm, 0.05-1.0 OD In Stock $2,192

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Circular Variable Metallic ND Filters

Circular Linear Variable Metallic ND Filters

Filter OD varies linearly with rotation angle
Dual purposed as variable beamsplitter
OD achieved using fine broadband coating

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	Compare	Description		Avail.	Price	Qty.
		25FS04DV.4 Neutral Density Filter, Circular Variable Metallic, UVFS, 25 mm, 0-4 OD		Show	$308		25FS04DV.4 Neutral Density Filter, Circular Variable Metallic, UVFS, 25 mm, 0-4 OD Show $308
		50FS04DV.4 Neutral Density Filter, Circular Variable Metallic, UVFS, 50 mm, 0-4 OD		In Stock	$414		50FS04DV.4 Neutral Density Filter, Circular Variable Metallic, UVFS, 50 mm, 0-4 OD In Stock $414
		100FS04DV.4 Neutral Density Filter, Circular Variable Metallic, UVFS, 100 mm, 0-4 OD		In Stock	$513		100FS04DV.4 Neutral Density Filter, Circular Variable Metallic, UVFS, 100 mm, 0-4 OD In Stock $513
		100FS02DV.2 Neutral Density Filter, Circular Variable Metallic, UVFS, 100 mm, 0-2 OD		In Stock	$482		100FS02DV.2 Neutral Density Filter, Circular Variable Metallic, UVFS, 100 mm, 0-2 OD In Stock $482
		50FS02DV.2 Neutral Density Filter, Circular Variable Metallic, UVFS, 50 mm, 0-2 OD		In Stock	$392		50FS02DV.2 Neutral Density Filter, Circular Variable Metallic, UVFS, 50 mm, 0-2 OD In Stock $392

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Circular Linear Variable Metallic ND Filters

Neutral Density Filter Sets

Sets of neutral density filters
Include a wooden storage case
Round or square filters

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	Compare	Description		Avail.	Price	Qty.
		5249NF ND Filter Set, Metallic, Borofloat, Qty 10		In Stock	$408		5249NF ND Filter Set, Metallic, Borofloat, Qty 10 In Stock $408
		5247NF ND Filter Set, Metallic, Borofloat, Qty 6		In Stock	$254		5247NF ND Filter Set, Metallic, Borofloat, Qty 6 In Stock $254
		5248 ND Filter Set, Metallic, Borofloat, Qty 6		3 Weeks	$254		5248 ND Filter Set, Metallic, Borofloat, Qty 6 3 Weeks $254
		FB-ND-P ND Filter Set, Metallic, Optical Crown Glass, 25.4 mm, Qty 8		In Stock	$395		FB-ND-P ND Filter Set, Metallic, Optical Crown Glass, 25.4 mm, Qty 8 In Stock $395
		FR-ND-P ND Filter Set, Metallic, UV Fused Silica, 25.4 mm, Qty 8		Contact Us	$621		FR-ND-P ND Filter Set, Metallic, UV Fused Silica, 25.4 mm, Qty 8 Contact Us $621

Viewing5 of 9 Products | View All 9 Products

Neutral Density Filter Sets

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