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FND-2530 - ND Filter NG3 D:3.0 T:0.10% Ø:25 mm

FND-2530 - ND Filter NG3  D:3.0 T:0.10% Ø:25 mm
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FND-2530 - ND Filter NG3 D:3.0 T:0.10% Ø:25 mm
  • Stock: In stock - Contact us for lead times.
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  • Model: Elliot Scientific FND-2530
£21.53

Neutral Density Filter, Absorptive : FND-2530 ND Filter NG3    

FND-2530 ND Filter NG3   

Performance

Optical Density: 3.0
Transmission: 0.10%
Thickness: 2.9 mm
Size: Ø 25 mm


Absorptive Schott glass nd filters are used to control the intensity of light and are stackable without resulting in multiple reflections. The nd glass absorbs the light within the filter. Each glass type is polished to required thickness and measured to produce the exact optical density and transmission. Custom sizes or wavelength-specific optical density/transmission can be manufactured upon request.

 

Specification

Material:Schott ® Filter Glass
Dimensions:Ø +0.00/-0.20 mm
Squares ± 0.20 mm
Thickness:± 0.10 mm
Parallelism:Ø 12.5 mm is ≤ 3 Arc min
Ø 25 mm is ≤ 5 Arc min
50x50 mm is ≤ 8 Arc min
Edges:Fine Ground
Flatness:Ø 12.5 mm = 3 Fringes
Ø 25 mm = 5 Fringes
50x50 mm = 8 Fringes
Surfaces:60/40
Optical Density:O.D < 1.0 ± .05 @ 546nm
O.D > 1.0 ± 5% @546nm
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