ISO 9001 - AS 9100 - ITAR Standard & Custom Optical Filters and Coatings
 
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. Polished to TWF 1/4 wave or better, this enables them to be stacked without concern about losses and artifacts due to multiple reflections. Absorbing ND filters are perfect for imaging applications.
 
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: 450–700nm
Optical Quality: TWF of λ/4 per inch and parallelism of 30 arc seconds or better
Mechanical: Unmounted
PART NO.
DESCRIPTION
1 - 5 pcs.
> 5 pcs.
Stock Status
Buy
Available Items
010ABND-25
Imaging Absorbing ND Filter, OD=0.1, 25mm diameter
$80.00
$76.00
In Stock
Qty To Buy:
%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.$80.00
> 5 pcs.$76.00

Estimated Delivery: 2-3 Days
010ABND-50S
Imaging Absorbing ND Filter, OD=0.1, 50mm x 50mm
$190.00
$181.00
In Stock
Qty To Buy:
%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.$190.00
> 5 pcs.$181.00

Estimated Delivery: 2-3 Days
020ABND-25
Imaging Absorbing ND Filter, OD=0.2, 25mm diameter
$80.00
$76.00
In Stock
Qty To Buy:
%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.$80.00
> 5 pcs.$76.00

Estimated Delivery: 2-3 Days
020ABND-50S
Imaging Absorbing ND Filter, OD=0.2, 50mm x 50mm
$190.00
$181.00
In Stock
Qty To Buy:
%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.$190.00
> 5 pcs.$181.00

Estimated Delivery: 2-3 Days
030ABND-25
Imaging Absorbing ND Filter, OD=0.3, 25mm diameter
$80.00
$76.00
In Stock
Qty To Buy:
%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.$80.00
> 5 pcs.$76.00

Estimated Delivery: 2-3 Days
030ABND-50S
Imaging Absorbing ND Filter, OD=0.3, 50mm x 50mm
$190.00
$181.00
In Stock
Qty To Buy:
%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.$190.00
> 5 pcs.$181.00

Estimated Delivery: 2-3 Days
040ABND-25
Imaging Absorbing ND Filter, OD=0.4, 25mm diameter
$80.00
$76.00
In Stock
Qty To Buy:
%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.$80.00
> 5 pcs.$76.00

Estimated Delivery: 2-3 Days
040ABND-50S
Imaging Absorbing ND Filter, OD=0.4, 50mm x 50mm
$190.00
$181.00
In Stock
Qty To Buy:
%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.$190.00
> 5 pcs.$181.00

Estimated Delivery: 2-3 Days
050ABND-25
Imaging Absorbing ND Filter, OD=0.5, 25mm diameter
$80.00
$76.00
In Stock
Qty To Buy:
%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.$80.00
> 5 pcs.$76.00

Estimated Delivery: 2-3 Days
050ABND-50S
Imaging Absorbing ND Filter, OD=0.5, 50mm x 50mm
$190.00
$181.00
In Stock
Qty To Buy:
%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.$190.00
> 5 pcs.$181.00

Estimated Delivery: 2-3 Days
060ABND-25
Imaging Absorbing ND Filter, OD=0.6, 25mm diameter
$80.00
$76.00
In Stock
Qty To Buy:
%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.$80.00
> 5 pcs.$76.00

Estimated Delivery: 2-3 Days
060ABND-50S
Imaging Absorbing ND Filter, OD=0.6, 50mm x 50mm
$190.00
$181.00
In Stock
Qty To Buy:
%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.$190.00
> 5 pcs.$181.00

Estimated Delivery: 2-3 Days
070ABND-25
Imaging Absorbing ND Filter, OD=0.7, 25mm diameter
$80.00
$76.00
In Stock
Qty To Buy:
%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.$80.00
> 5 pcs.$76.00

Estimated Delivery: 2-3 Days
070ABND-50S
Imaging Absorbing ND Filter, OD=0.7, 50mm x 50mm
$190.00
$181.00
In Stock
Qty To Buy:
%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.$190.00
> 5 pcs.$181.00

Estimated Delivery: 2-3 Days
080ABND-25
Imaging Absorbing ND Filter, OD=0.8, 25mm diameter
$80.00
$76.00
In Stock
Qty To Buy:
%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.$80.00
> 5 pcs.$76.00

Estimated Delivery: 2-3 Days
080ABND-50S
Imaging Absorbing ND Filter, OD=0.8, 50mm x 50mm
$190.00
$181.00
In Stock
Qty To Buy:
%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.$190.00
> 5 pcs.$181.00

Estimated Delivery: 2-3 Days
090ABND-25
Imaging Absorbing ND Filter, OD=0.9, 25mm diameter
$80.00
$76.00
In Stock
Qty To Buy:
%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.$80.00
> 5 pcs.$76.00

Estimated Delivery: 2-3 Days
090ABND-50S
Imaging Absorbing ND Filter, OD=0.9, 50mm x 50mm
$190.00
$181.00
In Stock
Qty To Buy:
%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.$190.00
> 5 pcs.$181.00

Estimated Delivery: 2-3 Days
100ABND-25
Imaging Absorbing ND Filter, OD=1.0, 25mm diameter
$80.00
$76.00
In Stock
Qty To Buy:
%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.$80.00
> 5 pcs.$76.00

Estimated Delivery: 2-3 Days
100ABND-50S
Imaging Absorbing ND Filter, OD=1.0, 50mm x 50mm
$190.00
$181.00
In Stock
Qty To Buy:
%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.$190.00
> 5 pcs.$181.00

Estimated Delivery: 2-3 Days
150ABND-25
Imaging Absorbing ND Filter, OD=1.5, 25mm diameter
$80.00
$76.00
In Stock
Qty To Buy:
%T (Optical Density)3.16 (1.5 OD)
Specifications±10% of the Optical Density @ 550nm
Substrate MaterialAbsorbing Filter Glass
Size25.0 ¯mm diameter
Thickness2.90 +nom/-nom mm
QuantityPrice
1 - 5 pcs.$80.00
> 5 pcs.$76.00

Estimated Delivery: 2-3 Days
150ABND-50S
Imaging Absorbing ND Filter, OD=1.5, 50mm x 50mm
$190.00
$181.00
In Stock
Qty To Buy:
%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.$190.00
> 5 pcs.$181.00

Estimated Delivery: 2-3 Days
200ABND-25
Imaging Absorbing ND Filter, OD=2.0, 25mm diameter
$80.00
$76.00
In Stock
Qty To Buy:
%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.$80.00
> 5 pcs.$76.00

Estimated Delivery: 2-3 Days
200ABND-50S
Imaging Absorbing ND Filter, OD=2.0, 50mm x 50mm
$190.00
$181.00
In Stock
Qty To Buy:
%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.$190.00
> 5 pcs.$181.00

Estimated Delivery: 2-3 Days
300ABND-25
Imaging Absorbing ND Filter, OD=3.0, 25mm diameter
$80.00
$76.00
In Stock
Qty To Buy:
%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.$80.00
> 5 pcs.$76.00

Estimated Delivery: 2-3 Days
300ABND-50S
Imaging Absorbing ND Filter, OD=3.0, 50mm x 50mm
$190.00
$181.00
In Stock
Qty To Buy:
%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.$190.00
> 5 pcs.$181.00

Estimated Delivery: 2-3 Days
400ABND-25
Imaging Absorbing ND Filter, OD=4.0, 25mm diameter
$80.00
$76.00
In Stock
Qty To Buy:
%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.$80.00
> 5 pcs.$76.00

Estimated Delivery: 2-3 Days
400ABND-50S
Imaging Absorbing ND Filter, OD=4.0, 50mm x 50mm
$190.00
$181.00
In Stock
Qty To Buy:
%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.$190.00
> 5 pcs.$181.00

Estimated Delivery: 2-3 Days