Metallic Neutral Density Filters VIS-NIR

Metallic Neutral Density Filters VIS-NIR

Metallic Neutral Density Filters VIS-NIR

Image Quality Metallic Neutral Density (ND) filters represent Andover's premium solution for precise light attenuation across ultraviolet, visible, and near-infrared wavelengths. These filters utilize specialized metal alloy coatings deposited on carefully selected substrates to achieve exceptional optical performance. With transmitted wavefront quality of 1/4 wave and parallelism less than 5 arcsec, these filters deliver superior performance for demanding imaging applications while maintaining excellent spectral neutrality across broad wavelength ranges.
  • Superior spectral linearity across wide wavelength ranges
  • Minimal thermal effects in low-power laser applications
  • Exceptional durability
  • High volume production capability
  • Custom size options
  • UV Grade Fused Silica substrates available
  • Precise optical density control
  • Available in convenient sets with storage
  • Calibration Systems
  • Light Attenuation
  • Low-Power Laser Systems
  • Scientific Measurements
  • Research Instrumentation
  • Machine Vision
  • Imaging Systems
  • Spectrophotometry
  • Optical Testing
  • Transmitted Wavefront: 1/4 wave
  • Parallelism: < 5 arcsec
  • Substrate: UV Grade Fused Silica available
  • Available Formats:
    • Individual filters
    • Sets with hardwood storage box
  • Customization Options:
    • Sizes
    • Densities
    • Wavelengths
    • Substrate materials
Optical Density Nominal Transmission (%) Transmission Deviation from Nominal (%)
250-400nm 400-800nm 800-2000nm
0.04 91.0 +/- 3.0 +/- 3.0 +/- 3.0
0.10 79.5 +/- 9.0 +/- 3.0 +/- 9.0
0.15 63.0 +/- 8.0 +/- 3.0 +/- 8.0
0.20 63.0 +/- 6.0 +/- 2.0 +/- 6.0
0.30 50.0 +/- 5.0 +/- 2.0 +/- 5.0
0.40 39.1 +/- 4.0 +/- 2.0 +/- 4.0
0.50 31.6 +/- 4.0 +/- 2.0 +/- 4.0
0.60 25.0 +/- 4.0 +/- 1.5 +/- 4.0
0.70 20.0 +/- 4.0 +/- 1.5 +/- 4.0
0.80 15.5 +/- 4.0 +/- 1.5 +/- 4.0
0.90 12.6 +/- 3.5 +/- 1.0 +/- 3.5
1.00 10.0 +/- 3.5 +/- 1.0 +/- 3.5
1.30 5.0 +/- 3.0 +/- 1.0 +/- 3.0
1.50 3.2 +/- 1.5 +/- 0.5 +/- 1.5
2.00 1.0 +/- 0.5 +/- 0.2 +/- 0.5
2.50 0.32 +/- 0.15 +/- 0.07 +/- 0.15
3.00 0.10 +0.08/-0.06 +/- 0.05 +/- 0.1
4.00 0.01 +/- 0.008 +0.01/-0.008 +/- 0.1
    PART NO.
    DESCRIPTION
    1 - 5 pcs.
    6 - 10 pcs.
    > 10 pcs.
    Stock Status

    010FN52-12.5

    Standard Vis-NIR ND Filter, OD=0.1, 12.5mm dia.

    $55.00
    $46.00
    $39.00
    In Stock

    010FN52-25

    Standard Vis-NIR ND Filter, OD=0.1, 25mm diameter

    $81.00
    $68.00
    $58.00
    In Stock

    010FN52-50

    Standard Vis-NIR ND Filter, OD=0.1, 50mm diameter

    $129.00
    $108.00
    $92.00
    In Stock

    010FN52-50S

    Standard Vis-NIR ND Filter, OD=0.1, 50mm x 50mm

    $129.00
    $108.00
    $92.00
    In Stock

    015FN52-12.5

    Standard Vis-NIR ND Filter, OD=0.15, 12.5mm dia.

    $55.00
    $46.00
    $39.00
    In Stock

    015FN52-25

    Standard Vis-NIR ND Filter, OD=0.15, 25mm diameter

    $81.00
    $68.00
    $58.00
    In Stock

    015FN52-50

    Standard Vis-NIR ND Filter, OD=0.15, 50mm diameter

    $129.00
    $108.00
    $92.00
    In Stock

    015FN52-50S

    Standard Vis-NIR ND Filter, OD=0.15, 50mm x 50mm

    $129.00
    $108.00
    $92.00
    In Stock

    020FN52-12.5

    Standard Vis-NIR ND Filter, OD=0.2, 12.5mm dia.

    $55.00
    $46.00
    $39.00
    In Stock

    020FN52-25

    Standard Vis-NIR ND Filter, OD=0.2, 25mm diameter

    $81.00
    $68.00
    $58.00
    In Stock

    020FN52-50

    Standard Vis-NIR ND Filter, OD=0.2, 50mm diameter

    $129.00
    $108.00
    $92.00
    In Stock

    020FN52-50S

    Standard Vis-NIR ND Filter, OD=0.2, 50mm x 50mm

    $129.00
    $108.00
    $92.00
    In Stock

    030FN52-12.5

    Standard Vis-NIR ND Filter, OD=0.3, 12.5mm dia.

    $55.00
    $46.00
    $39.00
    In Stock

    030FN52-25

    Standard Vis-NIR ND Filter, OD=0.3, 25mm diameter

    $81.00
    $68.00
    $58.00
    In Stock

    030FN52-50

    Standard Vis-NIR ND Filter, OD=0.3, 50mm diameter

    $129.00
    $108.00
    $92.00
    In Stock

    030FN52-50S

    Standard Vis-NIR ND Filter, OD=0.3, 50mm x 50mm

    $129.00
    $108.00
    $92.00
    In Stock