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Photo of Andover's IR ND filters

IR NEUTRAL DENSITY FILTER SETS

For your convenience and ecomony, Andover offers its metallic-coated infrared neutral density filters (IR ND filters) in sets. The cost is 10% lower than purchasing the individual parts, and they are supplied with a sturdy, hardwood storage case.

Andover's IR ND filters exhibit outstanding spectral neutrality, outperforming all others on the market. General specificatiosn are listed below. For individual part specifications, click here.

Note: Custom sizes and spectral characteristics available on request. Contact our technical sales department for a quotation.

 

BENEFITS 
  • Provides attenuation with greater linearity over a wide spectral range
  • Delivers superior durability
  • Custom substrates available
COMMON APPLICATIONS
  • Thermal imaging
  • Medical imaging
  • IR test bench
  • IR photography

Typical IR ND filter

 

General Specifications:

Dimensional Tolerances: ±0.2mm
Thickness:  1.0mm
Min. Clear Aperture:  90% of outside dimension
Surface Quality:  80/50 per MIL-O-13830B
Coating Quality:  80/50 per MIL-O-13830B
Coating Adherence:  Per MIL-M-13508C
Humidity:  Per MIL-STD-810F
Substrate Material:  Germanium
Flatness:  3–5 waves per 25mm
Parallelism:  10 arc minutes or better
Mechanical: Unmounted
PART NO.
DESCRIPTION
1 - 5 pcs.
6 - 10 pcs.
> 10 pcs.
Stock Status
Buy
Available Items
FNIR-SET-05-12.5
5-pc IR ND Filter Set, 12.5mm, OD=0.3, 0.5, 1.0, 2.0, 3.0
$793.00
$666.00
$563.00
In Stock
Qty To Buy:
Description5-pc IR ND Filter Set, 12.5mm, OD=0.3, 0.5, 1.0, 2.0, 3.0
NoteComes with hardwood storage box
Quantity DiscountsPrice
1 - 5 pcs.$793.00
6 - 10 pcs.$666.00
> 10 pcs.$563.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
FNIR-SET-05-25
5-pc IR ND Filter Set, 25mm, OD=0.3, 0.5, 1.0, 2.0, 3.0
$1,581.00
$1,328.00
$1,123.00
In Stock
Qty To Buy:
Description5-pc IR ND Filter Set, 25mm, OD=0.3, 0.5, 1.0, 2.0, 3.0
NoteComes with hardwood storage box
Quantity DiscountsPrice
1 - 5 pcs.$1,581.00
6 - 10 pcs.$1,328.00
> 10 pcs.$1,123.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
FNIR-SET-05-50
5-pc IR ND Filter Set, 50mm, OD=0.3, 0.5, 1.0, 2.0, 3.0
$3,274.00
$2,750.00
$2,325.00
In Stock
Qty To Buy:
Description5-pc IR ND Filter Set, 50mm, OD=0.3, 0.5, 1.0, 2.0, 3.0
NoteComes with hardwood storage box
Quantity DiscountsPrice
1 - 5 pcs.$3,274.00
6 - 10 pcs.$2,750.00
> 10 pcs.$2,325.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
FNIR-SET-12-12.5
12-pc IR ND Filter Set, 12.5mm, OD=0.3, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.3, 1.5, 2.0, 2.5, 3.0
$1,754.00
$1,473.00
$1,245.00
In Stock
Qty To Buy:
Description12-pc IR ND Filter Set, 12.5mm, OD=0.3, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.3, 1.5, 2.0, 2.5, 3.0
NoteComes with hardwood storage box
Quantity DiscountsPrice
1 - 5 pcs.$1,754.00
6 - 10 pcs.$1,473.00
> 10 pcs.$1,245.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
FNIR-SET-12-25
12-pc IR ND Filter Set, 25mm, OD=0.3, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.3, 1.5, 2.0, 2.5, 3.0
$3,797.00
$3,189.00
$2,696.00
In Stock
Qty To Buy:
Description12-pc IR ND Filter Set, 25mm, OD=0.3, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.3, 1.5, 2.0, 2.5, 3.0
NoteComes with hardwood storage box
Quantity DiscountsPrice
1 - 5 pcs.$3,797.00
6 - 10 pcs.$3,189.00
> 10 pcs.$2,696.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
FNIR-SET-12-50
12-pc IR ND Filter Set, 50mm, OD=0.3, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.3, 1.5, 2.0, 2.5, 3.0
$7,861.00
$6,603.00
$5,581.00
In Stock
Qty To Buy:
Description12-pc IR ND Filter Set, 50mm, OD=0.3, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.3, 1.5, 2.0, 2.5, 3.0
NoteComes with hardwood storage box
Quantity DiscountsPrice
1 - 5 pcs.$7,861.00
6 - 10 pcs.$6,603.00
> 10 pcs.$5,581.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days