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ND Filter Set, Metallic, Optical Crown Glass, 25.4 mm, Qty 8

The FB-ND Optical Crown Glass Metallic Neutral Density Filter Set is a set of eight, 1 inch (25.4 mm) diameter optical crown glass metallic ND filters of various optical density, and includes a wood case. Our metallic neutral density coatings provide broadband attenuation for low power applications. The coating is deposited on one side of a cost effective B 270 optical glass substrate, providing excellent performance in the visible and near-infrared. Products included in this set are listed below. Please note this set has two FBR-ND01.

Specifications

Technical Specs

Size
Ø25.4 mm
Wavelength Range
400-1200 nm
Optical Density
0.04, 0.1, 0.3, 0.5, 1.0, 2.0, 3.0
Angle of Incidence
0°
Material
B270 Optical Crown Glass
Damage Threshold
30 W/cm² CW, typical; not recommended for pulsed laser use
Size Tolerance
+0/-0.50 mm
Thickness
3.0 mm

Surface Flatness
≤5λ at 632.8 nm over the clear aperture
Surface Quality
60-40 scratch-dig
Clear Aperture
≥central 80% of dimensions
Wedge
≤5 arc min
Chamfers
0.25–0.76 mm face width
Chamfers Angle Tolerance
45° ±15°
Durability
MIL-C-48497A, adhesion, humidity, moderate abrasion, and solubility requirements
Cleaning
See How to Clean Optics

Size
Ø25.4 mm
Wavelength Range
400-1200 nm
Optical Density
0.04, 0.1, 0.3, 0.5, 1.0, 2.0, 3.0
Angle of Incidence
0°
Material
B270 Optical Crown Glass
Damage Threshold
30 W/cm² CW, typical; not recommended for pulsed laser use
Size Tolerance
+0/-0.50 mm
Thickness
3.0 mm

Surface Flatness
≤5λ at 632.8 nm over the clear aperture
Surface Quality
60-40 scratch-dig
Clear Aperture
≥central 80% of dimensions
Wedge
≤5 arc min
Chamfers
0.25–0.76 mm face width
Chamfers Angle Tolerance
45° ±15°
Durability
MIL-C-48497A, adhesion, humidity, moderate abrasion, and solubility requirements
Cleaning
See How to Clean Optics

Resources & Downloads

3D Product Models

Other

FB-ND RoHS Certificate(265.1 kB, PDF)

Related Products

Products Included in This Set

Description	Compatibility
ND Filter, Metallic, Optical Crown Glass, 25.4 mm, 0.04 OD at 632.8 nm	UNIVERSAL	Learn More
ND Filter, Metallic, Optical Crown Glass, 25.4 mm, 0.1 OD at 632.8 nm	UNIVERSAL	Learn More
ND Filter, Metallic, Optical Crown Glass, 25.4 mm, 0.3 OD at 632.8 nm	UNIVERSAL	Learn More
ND Filter, Metallic, Optical Crown Glass, 25.4 mm, 0.5 OD at 632.8 nm	UNIVERSAL	Learn More
ND Filter, Metallic, Optical Crown Glass, 25.4 mm, 1.0 OD at 632.8 nm	UNIVERSAL	Learn More
ND Filter, Metallic, Optical Crown Glass, 25.4 mm, 2.0 OD at 632.8 nm	UNIVERSAL	Learn More
ND Filter, Metallic, Optical Crown Glass, 25.4 mm, 3.0 OD at 632.8 nm	UNIVERSAL	Learn More

Accessories

Description	Compatibility
Gloves, Large, 100 Quantity	UNIVERSAL	Learn More
Solvent Dropper Bottle, 2 oz. (60ml)	UNIVERSAL	Learn More
Canned Air Duster, Ultra Jet	UNIVERSAL	Learn More
Precision Tweezers, 115 mm, Stainless Steel	UNIVERSAL	Learn More
Optic Cleaning Wipes, Class 1000 Cleanroom, 1200 Quantity	UNIVERSAL	Learn More

Compatible

Description	Compatibility
Optical Filter Mount, Stackable, 1.0 in. Diameter Optics	UNIVERSAL	Learn More
Optical Filter Holder, Drop-in, 25.4 mm Optics	UNIVERSAL	Learn More
Mirror Mount, ULTIMA<sup>®</sup>, Clear Edge, 1.0 in., 2 Locking Knobs	UNIVERSAL	Learn More

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