Type

• Absorptive Neutral Density Filter(42)
• UV Fused Silica Metallic ND Filter(32)
• Optical Crown Glass Metallic ND Filter(22)
• Infrared Neutral Density Filter(15)
• Circular Linear Variable ND Filters(13)
• Neutral Density Filter(10)

• Neutral Density Filter Set(3)
• UV Fused Silica Metallic Filters(2)
• Matched Filter Pairs(2)
• Individual Filters(2)
• Optical Crown Glass Metallic Filters(1)
• Infrared Neutral Density Filter Set(1)

Diameter

• 1.0 in. ( 25.4 mm )(65)
• 0.98 in. ( 25.0 mm )(13)
• 0.5 in. ( 12.7 mm )(8)
• 5.0 in. ( 127.0 mm )(4)
• 3.94 in. ( 100.0 mm )(3)
• 1.97 in. ( 50.0 mm )(3)

Thickness

• 0.118 in.(57)
• 0.039 in.(15)
• 0.043 in.(10)
• 0.079 in.(9)
• 0.062-0.165 in.(8)
• 0.38 in.(4)

• 0.125 in.(4)
• 0.067-0.079 in.(4)
• 0.157-0.177 in.(2)
• 0.122-0.134 in.(2)
• 0.118-0.134 in.(2)
• 0.114-0.122 in.(2)
• 0.098-0.118 in.(2)
• 0.098-0.114 in.(2)
• 0.087-0.098 in.(2)
• 0.0827-0.098 in.(2)
• 0.079-0.098 in.(2)
• 0.079-0.094 in.(2)
• 0.071-0.087 in.(2)
• 0.067-0.075 in.(2)
• 0.059-0.071 in.(2)
• 0.051-0.067 in.(2)

Material

• UV grade fused silica(47)
• Neutral density colored glass (BK 7 or equivalent for 0.04 OD)(42)
• B 270 optical crown glass(23)
• Germanium(10)
• Corning 7059(10)
• Optical grade germanium or equivalent(6)

• BK 7(4)

Surface Quality

• 60-40 scratch-dig(118)
• 40-20 scratch-dig(12)
• 80-50 scratch-dig(6)
• 30-10 scratch-dig(4)
• 20-10 scratch-dig(2)

Surface Flatness

• ≤1λ at 632.8 nm over the clear aperture(40)
• ≤2λ at 632.8 nm over the clear aperture(32)
• ≤5λ at 632.8 nm over the clear aperture(23)
• 3-5 λ per inch(10)
• 1 λ @ 633 nm(10)
• ≤1λ(4)

• ≤λ/2(2)
• ≤2λ(2)

Optical Density

• 2.0(11)
• 1.0(11)
• 3.0(10)
• 0.3(10)
• 0.5(9)
• 0.4(8)

• 0.2(8)
• 1.5(7)
• 0.1(7)
• 0.6(6)
• 2.5(5)
• 0.8(5)
• 4.0(4)
• 0.9(4)
• 0.7(4)
• 0.04(4)
• 0 - 4.0(3)
• 0 - 2.0(3)
• 0 - 1.0(3)
• 0.16-4.0(2)
• 0.15(2)
• 0.08-2.0(2)
• 0.05-2.0(2)
• 0.05-1.0(2)
• 0.05(2)
• 0.03(2)

Wedge

• ≤3 arc min(76)
• ≤5 arc min(23)
• ≤ 20 arc sec(9)
• 15 ±5 arc min(2)
• ≤ 20 arc min(2)

Wavelength Range

• 400-900 nm(42)
• 400-2000 nm(33)
• 250-2500 nm(9)
• 2 to 14 μm (optimized for 2 to 5 μm)(6)
• 430-700 nm(4)

Price

• Less than $50(47)
• $50 - $100(41)
• $100 - $200(17)
• $200 - $300(4)
• $300 - $400(10)
• $400 - $500(5)

• $500 - $750(8)
• $750 - $1000(5)
• $1000 - $1500(5)
• $1500 - $2000(2)
• $3000 - $4000(1)

Availability

• In Stock(135)
• 4 Weeks(2)
• 6 Weeks(1)
• 7 Weeks(3)
• 10 Weeks(3)