FILTER PRODUCTS

to
to

FILTER PRODUCTS

to
to

Neutral Density Filters (Shape: Square)

Quality assurance and quality control regulations, such as ISO 9000, GLP, GMP and pharmacopoeias, require companies to verify that any spectrophotometers in use are performing at a consistently high level. Hellma Analytics' certified reference materials can be used to test the following parameters easily and ...

Specifications

Attenuator Type: Other
Shape: Square
Size: Not Specified
Optical Density: Not Specified
Certified Wavelengths: 329, 472, 512, 681, 875 nm
Quality assurance and quality control regulations, such as ISO 9000, GLP, GMP and pharmacopoeias, require companies to verify that any spectrophotometers in use are performing at a consistently high level. Hellma Analytics' certified reference materials can be used to test the following parameters easily and ...

Specifications

Attenuator Type: Absorptive
Shape: Square
Size: Not Specified
Optical Density: 0.3
Certified Wavelengths: 440, 465, 546.1, 590, 635 nm
Quality assurance and quality control regulations, such as ISO 9000, GLP, GMP and pharmacopoeias, require companies to verify that any spectrophotometers in use are performing at a consistently high level. Hellma Analytics\' certified reference materials can be used to test the following parameters easily and ...

Specifications

Attenuator Type: Absorptive
Shape: Square
Size: Not Specified
Optical Density: 0.25
Certified Wavelengths: 279, 361, 453, 536, 638 nm
Quality assurance and quality control regulations, such as ISO 9000, GLP, GMP and pharmacopoeias, require companies to verify that any spectrophotometers in use are performing at a consistently high level. Hellma Analytics\' certified reference materials can be used to test the following parameters easily and ...

Specifications

Attenuator Type: Absorptive
Shape: Square
Size: Not Specified
Optical Density: 0.25
Certified Wavelengths: 279, 361, 453, 536, 638 nm
Quality assurance and quality control regulations, such as ISO 9000, GLP, GMP and pharmacopoeias, require companies to verify that any spectrophotometers in use are performing at a consistently high level. Hellma Analytics' certified reference materials can be used to test the following parameters easily and ...

Specifications

Attenuator Type: Other
Shape: Square
Size: Not Specified
Optical Density: Not Specified
Certified Wavelengths: 270, 280, 297, 321, 342 nm
The Andover Corporation Metallic Neutral Density Filters UV-VIS-NIR are a type of absorptive neutral density (ND) filter that are ideal for a range of applications such as calibration, attenuation, low-power lasers, scientific measurements and research, machine vision, and other imaging applications.    These filters ...

Specifications

Attenuator Type: Other
Shape: Round, Square, Custom
Size: 12.5 mm
Optical Density: 0.4
Nominal Transmission: 91.0 %
These are Neutral Density Filters (Absorptive type). They are made of absorptive glass and feature 80/50 scratch/dig quality.  Please contact us for details and ordering info.

Specifications

Attenuator Type: Absorptive
Shape: Round, Square, Custom
Size: 25.4 mm
Optical Density: 0.1
Design Wavelength: 400 - 700 nm
Material B270 Glass Dimension Tolerance +0.0/-0.2mm Thickness 1.5±0.2mm Flatness <2λ@632.8nm Surface Quality 60/40 scratch and dig Parallelism <3 arc minutes Clear Aperture >90% Design Wavelength 400-700nm Coating Metallic reflective coating OD Tolerance ±5% of OD Extremes

Specifications

Attenuator Type: Other
Shape: Round, Square, Custom
Size: 50 mm
Optical Density: 0
Material B270 Glass Dimension Tolerance +0.0/-0.2mm Thickness 2.0±0.2mm Flatness 2λ@632.8nm Surface Quality 80/50 scratch and dig Parallelism <5 arc minutes Clear Aperture >90% Design Wavelength 400-700nm Coating Metallic reflective coating OD Tolerance ±10% of OD

Specifications

Attenuator Type: Reflective
Shape: Round, Square, Custom
Size: 25.4 mm
Optical Density: 0.1
On FindLight marketplace you will find 9 different Neutral Density Filters (Shape: Square) from top global suppliers. Compare features, request pricing, and connect instantly with manufacturers — no registration required.