Neutral Density Filters

Neutral Density Filters

Product Details:

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Product Description

Neutral Density Filters
  • Type: Fixed, Variable Attenuation
  • Material: BK7
  • Size (Fixed Attenuation): 12.5mm-50mm
  • Size (Variable Attenuation): 25mm-100mm
  • Clear Aperture: More than 85%
  • Dimension Tolerance: - 0.1mm
  • Optical Density: 1-4
  • Surface Flatness: Lambda/4 per 25mm @632nm
  • Parallelism: 30 arc-sec
  • Customised Attenuation (OD), available on demand


Fixed OD Neutral density filter


SN

Model No.

Diameter (mm)

Optical Density

 

1

CNDFF25-1

25

1

 

2

CNDFF25-2

25

2

 

3

CNDFF25-3

25

3

 

4

CNDFF25-4

25

4

 

5

CNDFF50-1

50

1

 

6

CNDFF50-2

50

2

 

7

CNDFF50-3

50

3

 

8

CNDFF50-4

50

4

 

Variable OD Neutral Density Filter

SN

Model No.

Diameter (mm)

Optical Density

1

CNDFV25-4

25

0.04-4

2

CNDFV50-4

50

0.04-4

3

CNDFV75-4

75

0.04-4

4

CNDFV100-4

100

0.04-4


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