Neutral density (by absorption) filters «In Stock»
Neutral density (by absorption) filters are designed for a flat transmission over a particular wavelength range and defined by the optical density (OD). Overall optical attenuation is a sum of optical absorption in neutral density optical glass and Fresnel reflection losses. Neutral density optical filter densities add up when used in series.
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SPECIFICATION
SKU
PRICE
Qty. of stock
QUANTITY
25,4x25,4 mm; 3,25 mm; 1
2065
20 €
4
50,8x50,8 mm; 3,20 mm; 1
2077
40 €
3
HC-1; 25,4x25,4 mm; 3,25 mm; 0,3
2109
20 €
3
HC-1; 25,4x25,4 mm; 2,05 mm; 0,2
2110
20 €
4
HC-8; ⌀50,8 mm; 3,27 mm; 1
2112
40 €
1
HC-8; 30x50 mm; 3,27 mm; 1
28242
Request
1
NS-12 / NG1 (Schott); 30x24 mm; 3; +0,0/-0,25 mm; +0/-0,2 mm; > 85 %; S1: 80-50 S-D; S2: grinded; <1λ; <10 arcmin; < 0,35 mm at 45°
28922
Request
>5
NG1; ⌀30 mm; 2 mm; +0/-0,2 mm; ±0,25 mm; Both sides grinded; <3 arcmin; <0,35 mm at 45°
29157
Request
5
50,8x50,8 mm; 3,25 mm; 0,3
2931
40 €
3
HC-8; 50,8x50,8 mm; 1,6 mm; 0,5
2935
40 €
1
Neutral density color glass; ⌀25,4 mm; +0/-0,2 mm; >90%; 60-40 S-D; λ@633nm; <3 arcmin; <0,3 mm at 45°; 450-650 nm; 5; ±5%; T>0,001%@546nm
34196
Request
1
Schott NG1; ⌀10 mm; 2 mm; +0,0/-0,2 mm; +0,2/-0,0 mm; unpolished; No chamfers
36031
Request
2
HC-8; 14,7 x 11,4 mm; 3,27 mm (be lipduko); 1
36643
Request
4
HC-8; ⌀9,9 mm; 3,27 mm (be lipduko); 1
36644
Request
1
HC-8; 11,3 x 11,4 mm; 3,27 mm (be lipduko); 1
36667
Request
1
HC-1; ⌀50,8 mm; 3,25 mm; >80/50 (MetroRemark: S2 dėmėtas, gal prastai nupoliruotas); 0,3
39555
Request
1
HC-8; ⌀20 mm; 1,5 mm; 1,7
4181
20 €
>5
HC-8; ⌀25,4 mm; 1,7 mm; 1,5
4185
20 €
4
HC-1; 12x12 mm; 1 mm; 1,4
4203
20 €
>5
HC-1; 10 mm; 2,05 mm; 0,2
4463
20 €
>5
1
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