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₪ Individual Neutral Density Filters

Neutral Density Glass Type

Specifications:

Material: Optical Neutral Density Glass
Flatness: 2l per 25 mm
Surface Quality: 80/50
Parallelism: 3 min
Dimension Tolerance: ±2mm
Optical Density Tolerance: ±5%
Optical Density: D
Transmittance: T
D=Log(1/T)
Optical Density Transmission Thickness(mm) Appr. Ø25mm 50 X 50m
      Part No.  Price Part No. Price
0.04 91.2% 2.0 NDG0004 £5.6 NDG0104 £14.1
0.1 79.4% 1.9 NDG0010 £7 NDG0110 £19.7
0.2 63.1% 2.0 NDG0020 £7 NDG0120 £19.7
0.3 50.1% 2.3 NDG0030 £7 NDG0130 £19.7
0.4 39.8% 3.0 NDG0040 £7 NDG0140 £19.7
0.5 31.6% 1.8 NDG0050 £7 NDG0150 £19.7
0.8 15.8% 2.3 NDG0080 £7 NDG0180 £19.7
1.0 10% 2.0 NDG0100 £7 NDG0101 £19.7
2.0 1% 1.5 NDG0200 £8.5 NDG0102 £21.1
3.0 0.1% 2.0 NDG0300 £8.5 NDG0103 £21.1

Metallic Coating Type

Specifications:

Material: Optical Neutral Density Glass
Flatness: 2l per 25 mm
Surface Quality: 80/50
Parallelism: 3 min
Dimension Tolerance: ±2mm
Coating: Vacuum-deposited metallic alloy
Optical density Tolerance: ±5%
  Size(mm) BK7 Ø 25 X 2 BK7 50 X 50 X2 F.S.Ø25 X 2
Optical Density Transmission Part No. Price Part No. Price Part No. Price
0.1 79.4% NMC0101 £11.3 NMC0201 £17.6 NMC1101 £22.5
0.2 63.1% NMC0102 £11.3 NMC0202 £17.6 NMC1102 £22.5
0.3 50.1% NMC0103 £11.3 NMC0203 £17.6 NMC1103 £22.5
0.5 31.6% NMC0105 £11.3 NMC0205 £17.6 NMC1105 £22.5
0.8 15.8% NMC0108 £11.3 NMC0208 £17.6 NMC1108 £22.5
1.0 10% NMC0110 £11.3 NMC0210 £17.6 NMC1110 £22.5
2.0 1% NMC0120 £12.7 NMC0220 £19.7 NMC1120 £24.7
3.0 0.1% NMC0130 £12.7 NMC0230 £19.7 NMC1130 £24.7

Prices exclude VAT and Carriage - POA for larger quantities

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Interesting laser and optics facts ...
In 300 BC Euclid (Alexandria) noted that light travels in straight lines and described the law of reflection.

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