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ISO 9001 - AS 9100 - ITAR Standard & Custom Optical Filters and Coatings
Toll Free (US): +1 (888) 893-9992 International: +01 (603) 893-6888

Neutral Density Filter SetsNeutral Density Filter Sets

 

Andover's metallic-coated neutral density filter sets feature both round and square filters in your choice of four sizes (12.5mm Ø, 25mm Ø, 50mm Ø, 50mm Squares) and two substrates (Glass, Fused Silica).

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 Lambda/4 per inch and Parallelism of 30 arc seconds or better
Mechanical Unmounted
PART NO.
DESCRIPTION
1 - 5 pcs.
6 - 10 pcs.
> 10 pcs.
Stock Status
Buy
Available Items
128FA52-12.5
7 piece Vis-NIR Neutral Density set, 12.5mm dia.
$380.00
$319.00
$270.00
In Stock
Qty To Buy:
Set components010FN52-12.5 (0.10 OD); 030FN52-12.5 (0.30 OD); 050FN52-12.5 (0.50 OD); 100FN52-12.5 (1.00 OD); 200FN52-12.5 (2.00 OD); 300FN52-12.5 (3.00 OD); 400FN52-12.5 (4.00 OD);
Substrate MaterialSoda Lime Glass
Size12.5 ¯mm diameter
Quantity DiscountsPrice
1 - 5 pcs.$380.00
6 - 10 pcs.$319.00
> 10 pcs.$270.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
128FA52-25
7 piece Vis-NIR Neutral Density set, 25mm dia.
$586.00
$492.00
$416.00
In Stock
Qty To Buy:
Set components010FN52-25 (0.10 OD); 030FN52-25 (0.30 OD); 050FN52-25 (0.50 OD); 100FN52-25 (1.00 OD); 200FN52-25 (2.00 OD); 300FN52-25 (3.00 OD); 400FN52-25 (4.00 OD);
Substrate MaterialSoda Lime Glass
Size25.0 ¯mm diameter
Quantity DiscountsPrice
1 - 5 pcs.$586.00
6 - 10 pcs.$492.00
> 10 pcs.$416.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
128FA52-50
7 piece Vis-NIR Neutral Density set, 50mm dia.
$901.00
$757.00
$640.00
In Stock
Qty To Buy:
Set components010FN52-50 (0.10 OD); 030FN52-50 (0.30 OD); 050FN52-50 (0.50 OD); 100FN52-50 (1.00 OD); 200FN52-50 (2.00 OD); 300FN52-50 (3.00 OD); 400FN52-50 (4.00 OD);
Substrate MaterialSoda Lime Glass
Size50.0 ¯mm diameter
Quantity DiscountsPrice
1 - 5 pcs.$901.00
6 - 10 pcs.$757.00
> 10 pcs.$640.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
128FA52-50S
7 piece Vis-NIR Neutral Density set, 50mm x 50mm
$901.00
$757.00
$640.00
In Stock
Qty To Buy:
Set components010FN52-50S (0.10 OD); 030FN52-50S (0.30 OD); 050FN52-50S (0.50 OD); 100FN52-50S (1.00 OD); 200FN52-50S (2.00 OD); 300FN52-50S (3.00 OD); 400FN52-50S (4.00 OD);
Substrate MaterialSoda Lime Glass
Size50.0 x 50.0 mm square
Quantity DiscountsPrice
1 - 5 pcs.$901.00
6 - 10 pcs.$757.00
> 10 pcs.$640.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
130FA46-12.5
7 piece UV-NIR Neutral Density set, 12.5mm dia.
$642.00
$539.00
$456.00
In Stock
Qty To Buy:
Set components010FN46-12.5 (0.1 OD); 030FN46-12.5 (0.3 OD); 050FN46-12.5 (0.5 OD); 100FN46-12.5 (1.0 OD); 200FN46-12.5 (2.0 OD); 300FN46-12.5 (3.0 OD); 400FN46-12.5 (4.0 OD);
Substrate MaterialFused Silica
Size12.5 ¯mm diameter
Quantity DiscountsPrice
1 - 5 pcs.$642.00
6 - 10 pcs.$539.00
> 10 pcs.$456.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
130FA46-25
7 piece UV-NIR Neutral Density set, 25mm diameter
$926.00
$778.00
$657.00
In Stock
Qty To Buy:
Set components010FN46-25 (0.1 OD); 030FN46-25 (0.3 OD); 050FN46-25 (0.5 OD); 100FN46-25 (1.0 OD); 200FN46-25 (2.0 OD); 300FN46-25 (3.0 OD); 400FN46-25 (4.0 OD);
Substrate MaterialFused Silica
Size25.0 ¯mm diameter
Quantity DiscountsPrice
1 - 5 pcs.$926.00
6 - 10 pcs.$778.00
> 10 pcs.$657.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
130FA46-50
7 piece UV-NIR Neutral Density set, 50mm diameter
$1,574.00
$1,322.00
$1,118.00
In Stock
Qty To Buy:
Set components010FN46-50 (0.1 OD); 030FN46-50 (0.3 OD); 050FN46-50 (0.5 OD); 100FN46-50 (1.0 OD); 200FN46-50 (2.0 OD); 300FN46-50 (3.0 OD); 400FN46-50 (4.0 OD);
Substrate MaterialFused Silica
Size50.0 ¯mm diameter
Quantity DiscountsPrice
1 - 5 pcs.$1,574.00
6 - 10 pcs.$1,322.00
> 10 pcs.$1,118.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
130FA46-50S
7 piece UV-NIR Neutral Density set, 50mm x 50mm
$1,574.00
$1,322.00
$1,118.00
In Stock
Qty To Buy:
Set components010FN46-50S (0.1 OD); 030FN46-50S (0.3 OD); 050FN46-50S (0.5 OD); 100FN46-50S (1.0 OD); 200FN46-50S (2.0 OD); 300FN46-50S (3.0 OD); 400FN46-50S (4.0 OD);
Substrate MaterialFused Silica
Size50.0 x 50.0 mm square
Quantity DiscountsPrice
1 - 5 pcs.$1,574.00
6 - 10 pcs.$1,322.00
> 10 pcs.$1,118.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
132FA52-12.5
17 piece Vis-NIR Neutral Density set, 12.5mm dia.
$908.00
$763.00
$645.00
In Stock
Qty To Buy:
Set components010FN52-12.5 (0.10 OD); 015FN52-12.5 (0.15 OD); 020FN52-12.5 (0.20 OD); 030FN52-12.5 (0.30 OD); 040FN52-12.5 (0.40 OD); 050FN52-12.5 (0.50 OD); 060FN52-12.5 (0.60 OD); 070FN52-12.5 (0.70 OD); 080FN52-12.5 (0.80 OD); 090FN52-12.5 (0.90 OD); 100FN52-12.5 (1.00 OD); 130FN52-12.5 (1.30 OD); 150FN52-12.5 (1.50 OD); 200FN52-12.5 (2.00 OD); 250FN52-12.5 (2.50 OD); 300FN52-12.5 (3.00 OD); 400FN52-12.5 (4.00 OD);
Substrate MaterialSoda Lime Glass
Size12.5 ¯mm diameter
Quantity DiscountsPrice
1 - 5 pcs.$908.00
6 - 10 pcs.$763.00
> 10 pcs.$645.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
132FA52-25
17 piece Vis-NIR Neutral Density set, 25mm dia.
$1,392.00
$1,169.00
$988.00
In Stock
Qty To Buy:
Set components010FN52-25 (0.10 OD); 015FN52-25 (0.15 OD); 020FN52-25 (0.20 OD); 030FN52-25 (0.30 OD); 040FN52-25 (0.40 OD); 050FN52-25 (0.50 OD); 060FN52-25 (0.60 OD); 070FN52-25 (0.70 OD); 080FN52-25 (0.80 OD); 090FN52-25 (0.90 OD); 100FN52-25 (1.00 OD); 130FN52-25 (1.30 OD); 150FN52-25 (1.50 OD); 200FN52-25 (2.00 OD); 250FN52-25 (2.50 OD); 300FN52-25 (3.00 OD); 400FN52-25 (4.00 OD);
Substrate MaterialSoda Lime Glass
Size25.0 ¯mm diameter
Quantity DiscountsPrice
1 - 5 pcs.$1,392.00
6 - 10 pcs.$1,169.00
> 10 pcs.$988.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
132FA52-50
17 piece Vis-NIR Neutral Density set, 50mm dia.
$2,151.00
$1,807.00
$1,527.00
In Stock
Qty To Buy:
Set components010FN52-50 (0.10 OD); 015FN52-50 (0.15 OD); 020FN52-50 (0.20 OD); 030FN52-50 (0.30 OD); 040FN52-50 (0.40 OD); 050FN52-50 (0.50 OD); 060FN52-50 (0.60 OD); 070FN52-50 (0.70 OD); 080FN52-50 (0.80 OD); 090FN52-50 (0.90 OD); 100FN52-50 (1.00 OD); 130FN52-50 (1.30 OD); 150FN52-50 (1.50 OD); 200FN52-50 (2.00 OD); 250FN52-50 (2.50 OD); 300FN52-50 (3.00 OD); 400FN52-50 (4.00 OD);
Substrate MaterialSoda Lime Glass
Size50.0 ¯mm diameter
Quantity DiscountsPrice
1 - 5 pcs.$2,151.00
6 - 10 pcs.$1,807.00
> 10 pcs.$1,527.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
134FA46-12.5
17 piece UV-NIR Neutral Density set, 12.5mm dia.
$1,534.00
$1,289.00
$1,089.00
In Stock
Qty To Buy:
Set components010FN46-12.5 (0.1 OD); 015FN46-12.5 (0.15 OD); 020FN46-12.5 (0.2 OD); 030FN46-12.5 (0.3 OD); 040FN46-12.5 (0.4 OD); 050FN46-12.5 (0.5 OD); 060FN46-12.5 (0.6 OD); 070FN46-12.5 (0.7 OD); 080FN46-12.5 (0.8 OD); 090FN46-12.5 (0.9 OD); 100FN46-12.5 (1.0 OD); 130FN46-12.5 (1.3 OD); 150FN46-12.5 (1.5 OD); 200FN46-12.5 (2.0 OD); 250FN46-12.5 (2.5 OD); 300FN46-12.5 (3.0 OD); 400FN46-12.5 (4.0 OD);
Substrate MaterialFused Silica
Size12.5 ¯mm diameter
Quantity DiscountsPrice
1 - 5 pcs.$1,534.00
6 - 10 pcs.$1,289.00
> 10 pcs.$1,089.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
134FA46-25
17 piece UV-VIS-NIR Neutral Density set, 25mm ¯
$2,223.00
$1,867.00
$1,578.00
In Stock
Qty To Buy:
Set components010FN46-25 (0.1 OD); 015FN46-25 (0.15 OD); 020FN46-25 (0.2 OD); 030FN46-25 (0.3 OD); 040FN46-25 (0.4 OD); 050FN46-25 (0.5 OD); 060FN46-25 (0.6 OD); 070FN46-25 (0.7 OD); 080FN46-25 (0.8 OD); 090FN46-25 (0.9 OD); 100FN46-25 (1.0 OD); 130FN46-25 (1.3 OD); 150FN46-25 (1.5 OD); 200FN46-25 (2.0 OD); 250FN46-25 (2.5 OD); 300FN46-25 (3.0 OD); 400FN46-25 (4.0 OD);
Substrate MaterialFused Silica
Size25.0 ¯mm diameter
Quantity DiscountsPrice
1 - 5 pcs.$2,223.00
6 - 10 pcs.$1,867.00
> 10 pcs.$1,578.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
134FA46-50
17 piece UV-NIR Neutral Density set, 50mm diameter
$3,791.00
$3,184.00
$2,692.00
In Stock
Qty To Buy:
Set components010FN46-50 (0.1 OD); 015FN46-50 (0.15 OD); 020FN46-50 (0.2 OD); 030FN46-50 (0.3 OD); 040FN46-50 (0.4 OD); 050FN46-50 (0.5 OD); 060FN46-50 (0.6 OD); 070FN46-50 (0.7 OD); 080FN46-50 (0.8 OD); 090FN46-50 (0.9 OD); 100FN46-50 (1.0 OD); 130FN46-50 (1.3 OD); 150FN46-50 (1.5 OD); 200FN46-50 (2.0 OD); 250FN46-50 (2.5 OD); 300FN46-50 (3.0 OD); 400FN46-50 (4.0 OD);
Substrate MaterialFused Silica
Size50.0 ¯mm diameter
Quantity DiscountsPrice
1 - 5 pcs.$3,791.00
6 - 10 pcs.$3,184.00
> 10 pcs.$2,692.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
134FA46-50S
17 piece UV-NIR Neutral Density set, 50mm sq.
$3,791.00
$3,184.00
$2,692.00
In Stock
Qty To Buy:
Set components010FN46-50S (0.1 OD); 015FN46-50S (0.15 OD); 020FN46-50S (0.2 OD); 030FN46-50S (0.3 OD); 040FN46-50S (0.4 OD); 050FN46-50S (0.5 OD); 060FN46-50S (0.6 OD); 070FN46-50S (0.7 OD); 080FN46-50S (0.8 OD); 090FN46-50S (0.9 OD); 100FN46-50S (1.0 OD); 130FN46-50S (1.3 OD); 150FN46-50S (1.5 OD); 200FN46-50S (2.0 OD); 250FN46-50S (2.5 OD); 300FN46-50S (3.0 OD); 400FN46-50S (4.0 OD);
Substrate MaterialFused Silica
Size50.0 x 50.0 mm square
Quantity DiscountsPrice
1 - 5 pcs.$3,791.00
6 - 10 pcs.$3,184.00
> 10 pcs.$2,692.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
135FAND-25
7 piece Absorbing Neutral Density set, 25mm dia.
$667.00
$607.00
$507.00
In Stock
Qty To Buy:
Set components010ABND-25 (0.1 OD); 030ABND-25 (0.3 OD); 050ABND-25 (0.5 OD); 100ABND-25 (1.0 OD); 200ABND-25 (2.0 OD); 300ABND-25 (3.0 OD); 400ABND-25 (4.0 OD);
Substrate MaterialAbsorbing Filter Glass
Size25.0 ¯mm diameter
Quantity DiscountsPrice
1 - 5 pcs.$667.00
6 - 10 pcs.$607.00
> 10 pcs.$507.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
135FAND-50S
7 piece Absorbing Neutral Density set, 50mm sq.
$1,586.00
$1,443.00
$1,205.00
In Stock
Qty To Buy:
Set components010ABND-50S (0.1 OD); 030ABND-50S (0.3 OD); 050ABND-50S (0.5 OD); 100ABND-50S (1.0 OD); 200ABND-50S (2.0 OD); 300ABND-50S (3.0 OD); 400ABND-50S (4.0 OD);
Substrate MaterialAbsorbing Filter Glass
Size50.0 x 50.0 mm square
Quantity DiscountsPrice
1 - 5 pcs.$1,586.00
6 - 10 pcs.$1,443.00
> 10 pcs.$1,205.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
136FAND-25
14 piece Absorbing Neutral Density set, 25mm dia.
$1,336.00
$1,216.00
$1,015.00
In Stock
Qty To Buy:
Set components010ABND-25 (0.1 OD); 020ABND-25 (0.2 OD); 030ABND-25 (0.3 OD); 040ABND-25 (0.4 OD); 050ABND-25 (0.5 OD); 060ABND-25 (0.6 OD); 070ABND-25 (0.7 OD); 080ABND-25 (0.8 OD); 090ABND-25 (0.9 OD); 100ABND-25 (1.0 OD); 150ABND-25 (1.5 OD); 200ABND-25 (2.0 OD); 300ABND-25 (3.0 OD); 400ABND-25 (4.0 OD);
Substrate MaterialAbsorbing Filter Glass
Size25.0 ¯mm diameter
Quantity DiscountsPrice
1 - 5 pcs.$1,336.00
6 - 10 pcs.$1,216.00
> 10 pcs.$1,015.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
136FAND-50S
14 piece Absorbing Neutral Density set, 50mm sq.
$3,172.00
$2,887.00
$2,411.00
In Stock
Qty To Buy:
Set components010ABND-50S (0.1 OD); 020ABND-50S (0.2 OD); 030ABND-50S (0.3 OD); 040ABND-50S (0.4 OD); 050ABND-50S (0.5 OD); 060ABND-50S (0.6 OD); 070ABND-50S (0.7 OD); 080ABND-50S (0.8 OD); 090ABND-50S (0.9 OD); 100ABND-50S (1.0 OD); 150ABND-50S (1.5 OD); 200ABND-50S (2.0 OD); 300ABND-50S (3.0 OD); 400ABND-50S (4.0 OD);
Substrate MaterialAbsorbing Filter Glass
Size50.0 x 50.0 mm square
Quantity DiscountsPrice
1 - 5 pcs.$3,172.00
6 - 10 pcs.$2,887.00
> 10 pcs.$2,411.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days