ABSORPTIVE NEUTRAL DENSITY FILTERS UV-VIS-NIR

With their ability to minimize back-reflections and scattered light, absorptive neutral density (ND) filters are ideal for calibration. In contrast to the metallic type, absorption-type filters achieve their optical density by absorbing light within the substrate. For this reason, thickness is a key determinant of opacity.  Because of their absorbing quality, these filters are suitable for low-power applications only.

Andover's absorbing ND filters are unique in that they are AR coated to reduce surface reflections. This enables them to be stacked without concern about losses and artifacts due to multiple reflections.

Please note that all of our Absorbing ND filters are also available in sets, which include a hardwood storage box.

BENEFITS 
  • Ability to minimize back reflections and scattered light
  • Suitable for low power applications
COMMON APPLICATIONS
  • Photomicrography
  • Machine vision
  • Calibration
  • Photography
  • Scientific Measurements and research

 

GENERAL SPECIFICATIONS

Thickness: 5.0mm (maximum)
Dimensional Tolerance:  +0.0/-0.25mm
Clear Aperture: 90% of outside dimension
Surface Quality: 80/50 per MIL-0-13830B
Max. Operating Temperature: +100°C
Substrate Material: Schott absorption glass
Spectral Range: 400–700nm
Optical Quality: Flatness of λ/4 per inch and parallelism of 30 arc seconds or better
Mechanical: Unmounted
DESCRIPTION
PART NO.
1 - 5 pcs.
> 5 pcs.
QTY In Stock
Buy
Std Absorbing ND Filter, OD=0.1, 25mm diameter
010ABND-25
$65.00
$62.00
2
%T (Optical Density)79.43 (0.1 OD)
Specifications±10% of the Optical Density @ 550nm
Substrate MaterialAbsorbing Filter Glass
Size25.0 ¯mm diameter
Thickness4.95 +nom/-nom mm
QuantityPrice
1 - 5 pcs.$65.00
> 5 pcs.$62.00

Estimated Delivery: 2-3 Days
Std Absorbing ND Filter, OD=0.1, 50mm x 50mm
010ABND-50S
$114.00
$108.00
5
%T (Optical Density)79.43 (0.1 OD)
Specifications±10% of the Optical Density @ 550nm
Substrate MaterialAbsorbing Filter Glass
Size50.0 x 50.0 mm square
Thickness4.95 +nom/-nom mm
QuantityPrice
1 - 5 pcs.$114.00
> 5 pcs.$108.00

Estimated Delivery: 2-3 Days
Std Absorbing ND Filter, OD=0.2, 25mm diameter
020ABND-25
$65.00
$62.00
6
%T (Optical Density)63.10 (0.2 OD)
Specifications±10% of the Optical Density @ 550nm
Substrate MaterialAbsorbing Filter Glass
Size25.0 ¯mm diameter
Thickness1.52 +nom/-nom mm
QuantityPrice
1 - 5 pcs.$65.00
> 5 pcs.$62.00

Estimated Delivery: 2-3 Days
Std Absorbing ND Filter, OD=0.2, 50mm x 50mm
020ABND-50S
$114.00
$108.00
5
%T (Optical Density)63.10 (0.2 OD)
Specifications±10% of the Optical Density @ 550nm
Substrate MaterialAbsorbing Filter Glass
Size50.0 x 50.0 mm square
Thickness1.52 +nom/-nom mm
QuantityPrice
1 - 5 pcs.$114.00
> 5 pcs.$108.00

Estimated Delivery: 2-3 Days
Std Absorbing ND Filter, OD=0.3, 25mm diameter
030ABND-25
$65.00
$62.00
28
%T (Optical Density)50.12 (0.3 OD)
Specifications±10% of the Optical Density @ 550nm
Substrate MaterialAbsorbing Filter Glass
Size25.0 ¯mm diameter
Thickness2.84 +nom/-nom mm
QuantityPrice
1 - 5 pcs.$65.00
> 5 pcs.$62.00

Estimated Delivery: 2-3 Days
Std Absorbing ND Filter, OD=0.3, 50mm x 50mm
030ABND-50S
$114.00
$108.00
1
%T (Optical Density)50.12 (0.3 OD)
Specifications±10% of the Optical Density @ 550nm
Substrate MaterialAbsorbing Filter Glass
Size50.0 x 50.0 mm square
Thickness2.84 +nom/-nom mm
QuantityPrice
1 - 5 pcs.$114.00
> 5 pcs.$108.00

Estimated Delivery: 2-3 Days
Std Absorbing ND Filter, OD=0.4, 25mm diameter
040ABND-25
$65.00
$62.00
17
%T (Optical Density)39.81 (0.4 OD)
Specifications±10% of the Optical Density @ 550nm
Substrate MaterialAbsorbing Filter Glass
Size25.0 ¯mm diameter
Thickness3.78 +nom/-nom mm
QuantityPrice
1 - 5 pcs.$65.00
> 5 pcs.$62.00

Estimated Delivery: 2-3 Days
Std Absorbing ND Filter, OD=0.4, 50mm x 50mm
040ABND-50S
$114.00
$108.00
1
%T (Optical Density)39.81 (0.4 OD)
Specifications±10% of the Optical Density @ 550nm
Substrate MaterialAbsorbing Filter Glass
Size50.0 x 50.0 mm square
Thickness3.78 +nom/-nom mm
QuantityPrice
1 - 5 pcs.$114.00
> 5 pcs.$108.00

Estimated Delivery: 2-3 Days
Std Absorbing ND Filter, OD=0.5, 25mm diameter
050ABND-25
$65.00
$62.00
80
%T (Optical Density)31.62 (0.5 OD)
Specifications±10% of the Optical Density @ 550nm
Substrate MaterialAbsorbing Filter Glass
Size25.0 ¯mm diameter
Thickness2.11 +nom/-nom mm
QuantityPrice
1 - 5 pcs.$65.00
> 5 pcs.$62.00

Estimated Delivery: 2-3 Days
Std Absorbing ND Filter, OD=0.5, 50mm x 50mm
050ABND-50S
$114.00
$108.00
4
%T (Optical Density)31.62 (0.5 OD)
Specifications±10% of the Optical Density @ 550nm
Substrate MaterialAbsorbing Filter Glass
Size50.0 x 50.0 mm square
Thickness2.11 +nom/-nom mm
QuantityPrice
1 - 5 pcs.$114.00
> 5 pcs.$108.00

Estimated Delivery: 2-3 Days
Std Absorbing ND Filter, OD=0.6, 25mm diameter
060ABND-25
$65.00
$62.00
29
%T (Optical Density)25.12 (0.6 OD)
Specifications±10% of the Optical Density @ 550nm
Substrate MaterialAbsorbing Filter Glass
Size25.0 ¯mm diameter
Thickness2.54 +nom/-nom mm
QuantityPrice
1 - 5 pcs.$65.00
> 5 pcs.$62.00

Estimated Delivery: 2-3 Days
Std Absorbing ND Filter, OD=0.6, 50mm x 50mm
060ABND-50S
$114.00
$108.00
3
%T (Optical Density)25.12 (0.6 OD)
Specifications±10% of the Optical Density @ 550nm
Substrate MaterialAbsorbing Filter Glass
Size50.0 x 50.0 mm square
Thickness2.54 +nom/-nom mm
QuantityPrice
1 - 5 pcs.$114.00
> 5 pcs.$108.00

Estimated Delivery: 2-3 Days
Std Absorbing ND Filter, OD=0.7, 25mm diameter
070ABND-25
$65.00
$62.00
36
%T (Optical Density)19.95 (0.7 OD)
Specifications±10% of the Optical Density @ 550nm
Substrate MaterialAbsorbing Filter Glass
Size25.0 ¯mm diameter
Thickness2.95 +nom/-nom mm
QuantityPrice
1 - 5 pcs.$65.00
> 5 pcs.$62.00

Estimated Delivery: 2-3 Days
Std Absorbing ND Filter, OD=0.7, 50mm x 50mm
070ABND-50S
$114.00
$108.00
5
%T (Optical Density)19.95 (0.7 OD)
Specifications±10% of the Optical Density @ 550nm
Substrate MaterialAbsorbing Filter Glass
Size50.0 x 50.0 mm square
Thickness2.95 +nom/-nom mm
QuantityPrice
1 - 5 pcs.$114.00
> 5 pcs.$108.00

Estimated Delivery: 2-3 Days
Std Absorbing ND Filter, OD=0.8, 25mm diameter
080ABND-25
$65.00
$62.00
31
%T (Optical Density)15.85 (0.8 OD)
Specifications±10% of the Optical Density @ 550nm
Substrate MaterialAbsorbing Filter Glass
Size25.0 ¯mm diameter
Thickness3.38 +nom/-nom mm
QuantityPrice
1 - 5 pcs.$65.00
> 5 pcs.$62.00

Estimated Delivery: 2-3 Days
Std Absorbing ND Filter, OD=0.8, 50mm x 50mm
080ABND-50S
$114.00
$108.00
6
%T (Optical Density)15.85 (0.8 OD)
Specifications±10% of the Optical Density @ 550nm
Substrate MaterialAbsorbing Filter Glass
Size50.0 x 50.0 mm square
Thickness3.38 +nom/-nom mm
QuantityPrice
1 - 5 pcs.$114.00
> 5 pcs.$108.00

Estimated Delivery: 2-3 Days
Std Absorbing ND Filter, OD=0.9, 25mm diameter
090ABND-25
$65.00
$62.00
6
%T (Optical Density)12.59 (0.9 OD)
Specifications±10% of the Optical Density @ 550nm
Substrate MaterialAbsorbing Filter Glass
Size25.0 ¯mm diameter
Thickness1.75 +nom/-nom mm
QuantityPrice
1 - 5 pcs.$65.00
> 5 pcs.$62.00

Estimated Delivery: 2-3 Days
Std Absorbing ND Filter, OD=0.9, 50mm x 50mm
090ABND-50S
$114.00
$108.00
4
%T (Optical Density)12.59 (0.9 OD)
Specifications±10% of the Optical Density @ 550nm
Substrate MaterialAbsorbing Filter Glass
Size50.0 x 50.0 mm square
Thickness1.75 +nom/-nom mm
QuantityPrice
1 - 5 pcs.$114.00
> 5 pcs.$108.00

Estimated Delivery: 2-3 Days
Std Absorbing ND Filter, OD=1.0, 25mm diameter
100ABND-25
$65.00
$62.00
56
%T (Optical Density)10.00 (1.0 OD)
Specifications±10% of the Optical Density @ 550nm
Substrate MaterialAbsorbing Filter Glass
Size25.0 ¯mm diameter
Thickness1.96 +nom/-nom mm
QuantityPrice
1 - 5 pcs.$65.00
> 5 pcs.$62.00

Estimated Delivery: 2-3 Days
Standard Absorbing ND Filter, OD=1.0, 50mm x50mm
100ABND-50S
$114.00
$108.00
2
%T (Optical Density)10.00 (1.0 OD)
Specifications±10% of the Optical Density @ 550nm
Substrate MaterialAbsorbing Filter Glass
Size50.0 x 50.0 mm square
Thickness1.96 +nom/-nom mm
QuantityPrice
1 - 5 pcs.$114.00
> 5 pcs.$108.00

Estimated Delivery: 2-3 Days
Std Absorbing ND Filter, OD=1.5, 50mm x 50mm
150ABND-50S
$114.00
$108.00
3
%T (Optical Density)3.16 (1.5 OD)
Specifications±10% of the Optical Density @ 550nm
Substrate MaterialAbsorbing Filter Glass
Size50.0 x 50.0 mm square
Thickness2.90 +nom/-nom mm
QuantityPrice
1 - 5 pcs.$114.00
> 5 pcs.$108.00

Estimated Delivery: 2-3 Days
Std Absorbing ND Filter, OD=2.0, 25.0mm ¯
200ABND-25
$65.00
$62.00
36
%T (Optical Density)1.00 (2.0 OD)
Specifications±10% of the Optical Density @ 550nm
Substrate MaterialAbsorbing Filter Glass
Size25.0 ¯mm diameter
Thickness2.06 +nom/-nom mm
QuantityPrice
1 - 5 pcs.$65.00
> 5 pcs.$62.00

Estimated Delivery: 2-3 Days
Std Absorbing ND Filter, OD=2.0, 50mm x 50mm
200ABND-50S
$114.00
$108.00
6
%T (Optical Density)1.00 (2.0 OD)
Specifications±10% of the Optical Density @ 550nm
Substrate MaterialAbsorbing Filter Glass
Size50.0 x 50.0 mm square
Thickness2.06 +nom/-nom mm
QuantityPrice
1 - 5 pcs.$114.00
> 5 pcs.$108.00

Estimated Delivery: 2-3 Days
Std Absorbing ND Filter, OD=3.0, 25mm diameter
300ABND-25
$65.00
$62.00
173
%T (Optical Density)0.10 (3.0 OD)
Specifications±10% of the Optical Density @ 550nm
Substrate MaterialAbsorbing Filter Glass
Size25.0 ¯mm diameter
Thickness2.92 +nom/-nom mm
QuantityPrice
1 - 5 pcs.$65.00
> 5 pcs.$62.00

Estimated Delivery: 2-3 Days
Custom Absorbing ND Filter, OD=3.0, 50mm x 50mm
300ABND-50S
$114.00
$108.00
2
%T (Optical Density)0.10 (3.0 OD)
Specifications±10% of the Optical Density @ 550nm
Substrate MaterialAbsorbing Filter Glass
Size50.0 x 50.0 mm square
Thickness2.92 +nom/-nom mm
QuantityPrice
1 - 5 pcs.$114.00
> 5 pcs.$108.00

Estimated Delivery: 2-3 Days
Std Absorbing ND Filter, OD=4.0, 25mm diameter
400ABND-25
$65.00
$62.00
29
%T (Optical Density)0.01 (4.0 OD)
Specifications±10% of the Optical Density @ 550nm
Substrate MaterialAbsorbing Filter Glass
Size25.0 ¯mm diameter
Thickness2.82mm +nom/-nom mm
QuantityPrice
1 - 5 pcs.$65.00
> 5 pcs.$62.00

Estimated Delivery: 2-3 Days
Std Absorbing ND Filter, OD=4.0, 50mm x 50mm
400ABND-50S
$114.00
$108.00
2
%T (Optical Density)0.01 (4.0 OD)
Specifications±10% of the Optical Density @ 550nm
Substrate MaterialAbsorbing Filter Glass
Size50.0 x 50.0 mm square
Thickness2.82 +nom/-nom mm
QuantityPrice
1 - 5 pcs.$114.00
> 5 pcs.$108.00

Estimated Delivery: 2-3 Days