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Products / Optics /Filters /Neutral Density Filters /Circular Continuous ND Filters /

Circular Continuous ND Filters

BK7 Mounting B270 Quartz Coating Graph Order Now!

BK7 has excellent transmission in general visual and near-infrared wavelengths, hence making it an ideal choice to be used in Neautral Density Filters. BK7 Circular Continuous ND Filters can adjust the intensity of incoming light beam to be transmitted by rotating along its centre axis. The spectrum passes through will continue to maintain its neutral spectrum energy distribution. This filter is commonly used in laser and medical application. By combining two filters, fixed density attenuation effect across a greater area can be obtained. The spectral range of our filters features a wavelength of 250-2500nm.

The level of attenuation is specified by Optical Density (OD) of the filter.

OD is defined as negative of the base 10 logarithm of the transmission coefficient

The equation can be shown as:

OD= - Log₁₀ (T/100)

Where T is transmission in percentage.

E.g. A Neutral Density Filter with T= 1% has OD of 2.

General Specifications
Material	BK7
Type	Circular Continuous ND Filter
Spectral Range(nm)	400-700
Metallic Coating Angle(°)	360
Hole Diameter Tolerance(mm)	± 0.25
Thickness Tolerance(mm)	± 0.2
Clear Aperture	>90%
Parallelism(arcmin)	<5
Chamfer	<0.5mmx45°
Damage Threshold(pulsed)	7.5 J/cm² (10ns/10Hz)

BK7 is an ideal choice for general purpose visible and near-infrared applications due to its excellet transmission across the wavelengths, hence it is used in Mounted Circular ND Filters. The 50mm OD filters are available mounted. The durable anodized aluminium mount has an indicator arrow that accurately identifies the angular position of the filter for increased repeatability. A convenient M6 screw hole in the aluminium mount block permits a variety of mounting conﬁgurations.

The level of attenuation is specified by Optical Density (OD) of the filter.

OD is defined as negative of the base 10 logarithm of the transmission coefficient,

The equation can be shown as:

OD= - Log₁₀ (T/100)

Where T is transmission in percentage.

E.g. A Neutral Density Filter with T= 1% has OD of 2.

General Specifications
Type	Mounted Circular ND Filter
Spectral range(nm)	400-700
Hole Diameter Tolerance(mm)	±0.1
Surface Quality	40/20
Clear Aperture	85%
Parallelism(arcsec)	<30
Metallic Coating Area Angle (degree)	270

B270 has high transparency for visible and near-infrared light, hence making it an ideal choice in Neutral Density Filters. B270 Circular Continuous ND Filters can adjust the intensity of incoming light beam to be transmitted by rotating along its centre axis. The spectrum passes through will continue to maintain its neutral spectrum energy distribution. This filter is commonly used in laser and medical application. By combining two filters, fixed density attenuation effect across a greater area can be obtained. The spectral range of our filters features a wavelength of 250-2500nm.

The level of attenuation is specified by Optical Density (OD) of the filter.

OD is defined as negative of the base 10 logarithm of the transmission coefficient

The equation can be shown as:

OD= - Log₁₀ (T/100)

Where T is transmission in percentage.

E.g. A Neutral Density Filter with T= 1% has OD of 2.

General Specifications
Material	B270
Type	Circular Continuous ND Filter
Spectral Range(nm)	380-2100
Metallic Coating Angle(°)	0-270
Hole Diameter Tolerance(mm)	± 0.25
Thickness Tolerance(mm)	± 0.2
Clear Aperture	>80%
Parallelism(arcmin)	<30
Chamfer	<0.5mmx45°
Damage Threshold(pulsed)	7.5 J/cm² (10ns/10Hz)

Quartz has high transmission wihtin the UV, VIS and NIR wavelength range, as well as exhibiting circular birefriengence effect allowing ordinary and extraordinary beam to propagate, hence it is an ideal choice for Neutral Density Filter. Quartz Circular Continuous ND Filters can adjust the intensity of incoming light beam to be transmitted by rotating along its centre axis. The spectrum passes through will continue to maintain its neutral spectrum energy distribution. This filter is commonly used in laser and medical application. By combining two filters, fixed density attenuation effect across a greater area can be obtained. The spectral range of our filters features a wavelength of 250-2500nm.

The level of attenuation is specified by Optical Density (OD) of the filter.

OD is defined as negative of the base 10 logarithm of the transmission coefficient

The equation can be shown as:

OD= - Log₁₀ (T/100)

Where T is transmission in percentage.

E.g. A Neutral Density Filter with T= 1% has OD of 2.

General Specifications
Material	Quartz
Type	Circular Continuous ND Filters
Spectral Range(nm)	250-2500
Metallic Coating Area Angle(degree)	0-270
Hole Diameter Tolerance (mm)	+0.25/-0
Outside Diameter Tolerance (mm)	+0/-0.25
Thickness Tolerance(mm)	±0.25
Surface Quality	40-20
Clear Aperture	>80%
Parallelism(arcmin)	±3
Chamfer	<0.5mmx45°
Damage Threshold(pulsed)	7.5J/cm² (10ns/10Hz)

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Outside Diameter (mm)

Optical Density Range

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	Spectral Range (nm)	Hole Diameter (mm)	Optical Density Range	Outside Diameter (mm)	Availability	Reference Price (USD)
BK7-MNDF-50-0-0.1 BK7, Mounted Circular Neutral Density Filter-v3, Ø=50mm, OD Range:0-0.1, Spectral Range: 400-700nm	400-700	12		50	2-3 Weeks	Request for quote
BK7-MNDF-50-0-1.5 BK7, Mounted Circular Neutral Density Filter-v3, Ø=50mm, OD Range:0-1.5, Spectral Range: 400-700nm	400-700	12		50	2-3 Weeks	Request for quote
BK7-MNDF-50-0-2 BK7, Mounted Circular Neutral Density Filter-v3, Ø=50mm, OD Range:0-2, Spectral Range: 400-700nm	400-700	12		50	2-3 Weeks	Request for quote
BK7-MNDF-50-0-3 BK7, Mounted Circular Neutral Density Filter-v3, Ø=50mm, OD Range:0-3, Spectral Range: 400-700nm	400-700	12		50	2-3 Weeks	Request for quote
BK7-RNDF-50-0.0-1.0 BK7, Circular Continuous ND Filters, Ø=50mm, OD Range:0.0-1.0, Spectral Range: 400-700nm	400-700	8		50	2-3 Weeks	Request for quote
BK7-RNDF-50-0.0-1.5 BK7, Circular Continuous ND Filters, Ø=50mm, OD Range:0.0-1.5, Spectral Range: 400-700nm	400-700	8		50	2-3 Weeks	Request for quote
BK7-RNDF-50-0.0-2.0 BK7, Circular Continuous ND Filters, Ø=50mm, OD Range:0.0-2.0, Spectral Range: 400-700nm	400-700	8		50	2-3 Weeks	Request for quote
BK7-RNDF-50-0.0-3.0 BK7, Circular Continuous ND Filters, Ø=50mm, OD Range:0.0-3.0, Spectral Range: 400-700nm	400-700	8		50	2-3 Weeks	Request for quote
B270-CCNDF-40-0.04-1.0 B270,Circular Continuous Density Filters, Ø = 40mm, OD Range: 0.04-1.0	380-2100	7.5	0.04-1.0	40	2-3 Weeks	Request for quote
B270-CCNDF-40-0.04-1.5 B270,Circular Continuous Density Filters, Ø = 40mm, OD Range: 0.04-1.5	380-2100	7.5	0.04-1.5	40	2-3 Weeks	Request for quote
B270-CCNDF-40-0.04-2.0 B270,Circular Continuous Density Filters, Ø = 40mm, OD Range: 0.04-2.0	380-2100	7.5	0.04-2.0	40	2-3 Weeks	Request for quote
B270-CCNDF-40-0.04-3.0 B270,Circular Continuous Density Filters, Ø = 40mm, OD Range: 0.04-3.0	380-2100	7.5	0.04-3.0	40	2-3 Weeks	Request for quote
B270-CCNDF-40-0.04-4.0 B270,Circular Continuous Density Filters, Ø = 40mm, OD Range: 0.04-4.0	380-2100	7.5	0.04-4.0	40	2-3 Weeks	Request for quote
B270-CCNDF-45-0.04-1.0 B270,Circular Continuous Density Filters, Ø = 45mm, OD Range: 0.04-1.0	380-2100	7.5	0.04-1.0	45	2-3 Weeks	Request for quote
B270-CCNDF-45-0.04-1.5 B270,Circular Continuous Density Filters, Ø = 45mm, OD Range: 0.04-1.5	380-2100	7.5	0.04-1.5	45	2-3 Weeks	Request for quote
B270-CCNDF-45-0.04-2.0 B270,Circular Continuous Density Filters, Ø = 45mm, OD Range: 0.04-2.0	380-2100	7.5	0.04-2.0	45	2-3 Weeks	Request for quote
B270-CCNDF-45-0.04-3.0 B270,Circular Continuous Density Filters, Ø = 45mm, OD Range: 0.04-3.0	380-2100	7.5	0.04-3.0	45	2-3 Weeks	Request for quote
B270-CCNDF-45-0.04-4.0 B270,Circular Continuous Density Filters, Ø = 45mm, OD Range: 0.04-4.0	380-2100	7.5	0.04-4.0	45	2-3 Weeks	Request for quote
B270-CCNDF-50-0.04-1.0 B270,Circular Continuous Density Filters, Ø = 50mm, OD Range: 0.04-1.0	380-2100	7.5	0.04-1.0	50	2-3 Weeks	Request for quote
B270-CCNDF-50-0.04-1.5 B270,Circular Continuous Density Filters, Ø = 50mm, OD Range: 0.04-1.5	380-2100	7.5	0.04-1.5	50	2-3 Weeks	Request for quote
B270-CCNDF-50-0.04-2.0 B270,Circular Continuous Density Filters, Ø = 50mm, OD Range: 0.04-2.0	380-2100	7.5	0.04-2.0	50	2-3 Weeks	Request for quote
B270-CCNDF-50-0.04-3.0 B270,Circular Continuous Density Filters, Ø = 50mm, OD Range: 0.04-3.0	380-2100	7.5	0.04-3.0	50	2-3 Weeks	Request for quote
B270-CCNDF-50-0.04-4.0 B270,Circular Continuous Density Filters, Ø = 50mm, OD Range: 0.04-4.0	380-2100	7.5	0.04-4.0	50	2-3 Weeks	Request for quote
B270-CCNDF-60-0.04-1.0 B270,Circular Continuous Density Filters, Ø = 60mm, OD Range: 0.04-1.0	380-2100	7.5	0.04-1.0	60	2-3 Weeks	Request for quote
B270-CCNDF-60-0.04-1.5 B270,Circular Continuous Density Filters, Ø = 60mm, OD Range: 0.04-1.5	380-2100	7.5	0.04-1.5	60	2-3 Weeks	Request for quote
B270-CCNDF-60-0.04-2.0 B270,Circular Continuous Density Filters, Ø = 60mm, OD Range: 0.04-2.0	380-2100	7.5	0.04-2.0	60	2-3 Weeks	Request for quote
B270-CCNDF-60-0.04-3.0 B270,Circular Continuous Density Filters, Ø = 60mm, OD Range: 0.04-3.0	380-2100	7.5	0.04-3.0	60	2-3 Weeks	Request for quote
B270-CCNDF-60-0.04-4.0 B270,Circular Continuous Density Filters, Ø = 60mm, OD Range: 0.04-4.0	380-2100	7.5	0.04-4.0	60	2-3 Weeks	Request for quote
Q-CCNDF-40-0.04-1.0 Quartz ,Circular Continuous Density Filters, Ø = 40mm, OD Range: 0.04-1.0	250-2500	7.5	0.04-1.0	40	2-3 Weeks	Request for quote
Q-CCNDF-40-0.04-1.5 Quartz ,Circular Continuous Density Filters, Ø = 40mm, OD Range: 0.04-1.5	250-2500	7.5	0.04-1.5	40	2-3 Weeks	Request for quote
Q-CCNDF-40-0.04-2.0 Quartz ,Circular Continuous Density Filters, Ø = 40mm, OD Range: 0.04-2.0	250-2500	7.5	0.04-2.0	40	2-3 Weeks	Request for quote
Q-CCNDF-40-0.04-3.0 Quartz ,Circular Continuous Density Filters, Ø = 40mm, OD Range: 0.04-3.0	250-2500	7.5	0.04-3.0	40	2-3 Weeks	Request for quote
Q-CCNDF-40-0.04-4.0 Quartz ,Circular Continuous Density Filters, Ø = 40mm, OD Range: 0.04-4.0	250-2500	7.5	0.04-4.0	40	2-3 Weeks	Request for quote
Q-CCNDF-45-0.04-1.0 Quartz ,Circular Continuous Density Filters, Ø = 45mm, OD Range: 0.04-1.0	250-2500	7.5	0.04-1.0	45	2-3 Weeks	Request for quote
Q-CCNDF-45-0.04-1.5 Quartz ,Circular Continuous Density Filters, Ø = 45mm, OD Range: 0.04-1.5	250-2500	7.5	0.04-1.5	45	2-3 Weeks	Request for quote
Q-CCNDF-45-0.04-2.0 Quartz ,Circular Continuous Density Filters, Ø = 45mm, OD Range: 0.04-2.0	250-2500	7.5	0.04-2.0	45	2-3 Weeks	Request for quote
Q-CCNDF-45-0.04-3.0 Quartz ,Circular Continuous Density Filters, Ø = 45mm, OD Range: 0.04-3.0	250-2500	7.5	0.04-3.0	45	2-3 Weeks	Request for quote
Q-CCNDF-45-0.04-4.0 Quartz ,Circular Continuous Density Filters, Ø = 45mm, OD Range: 0.04-4.0	250-2500	7.5	0.04-4.0	45	2-3 Weeks	Request for quote
Q-CCNDF-50-0.04-1.0 Quartz ,Circular Continuous Density Filters, Ø = 50mm, OD Range: 0.04-1.0	250-2500	7.5	0.04-1.0	50	2-3 Weeks	Request for quote
Q-CCNDF-50-0.04-1.5 Quartz ,Circular Continuous Density Filters, Ø = 50mm, OD Range: 0.04-1.5	250-2500	7.5	0.04-1.5	50	2-3 Weeks	Request for quote
Q-CCNDF-50-0.04-2.0 Quartz ,Circular Continuous Density Filters, Ø = 50mm, OD Range: 0.04-2.0	250-2500	7.5	0.04-2.0	50	2-3 Weeks	Request for quote
Q-CCNDF-50-0.04-3.0 Quartz ,Circular Continuous Density Filters, Ø = 50mm, OD Range: 0.04-3.0	250-2500	7.5	0.04-3.0	50	2-3 Weeks	Request for quote
Q-CCNDF-50-0.04-4.0 Quartz ,Circular Continuous Density Filters, Ø = 50mm, OD Range: 0.04-4.0	250-2500	7.5	0.04-4.0	50	2-3 Weeks	Request for quote
Q-CCNDF-60-0.04-1.0 Quartz ,Circular Continuous Density Filters, Ø = 60mm, OD Range: 0.04-1.0	250-2500	7.5	0.04-1.0	60	2-3 Weeks	Request for quote
Q-CCNDF-60-0.04-1.5 Quartz ,Circular Continuous Density Filters, Ø = 60mm, OD Range: 0.04-1.5	250-2500	7.5	0.04-1.5	60	2-3 Weeks	Request for quote
Q-CCNDF-60-0.04-2.0 Quartz ,Circular Continuous Density Filters, Ø = 60mm, OD Range: 0.04-2.0	250-2500	7.5	0.04-2.0	60	2-3 Weeks	Request for quote
Q-CCNDF-60-0.04-3.0 Quartz ,Circular Continuous Density Filters, Ø = 60mm, OD Range: 0.04-3.0	250-2500	7.5	0.04-3.0	60	2-3 Weeks	Request for quote
Q-CCNDF-60-0.04-4.0 Quartz ,Circular Continuous Density Filters, Ø = 60mm, OD Range: 0.04-4.0	250-2500	7.5	0.04-4.0	60	2-3 Weeks	Request for quote

Q-CCNDF-60-0.04-4.0 - Parameter

Type

Circular Continuous ND Filters

Material

Quartz

Thickness Tolerance (mm)

±0.25

Surface Quality

40-20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

Spectral Range (nm)

250-2500

Metallic Coating Area Angle (degree)

0° - 270°

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

+0.25/-0

Hole Diameter (mm)

7.5

Optical Density Range

0.04-4.0

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

+0/-0.25

Standard Linearity

±5%

Standard Deviation

±5%

Q-CCNDF-60-0.04-3.0 - Parameter

Type

Circular Continuous ND Filters

Material

Quartz

Thickness Tolerance (mm)

±0.25

Surface Quality

40-20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

Spectral Range (nm)

250-2500

Metallic Coating Area Angle (degree)

0° - 270°

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

+0.25/-0

Hole Diameter (mm)

7.5

Optical Density Range

0.04-3.0

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

+0/-0.25

Standard Linearity

±5%

Standard Deviation

±5%

Q-CCNDF-60-0.04-2.0 - Parameter

Type

Circular Continuous ND Filters

Material

Quartz

Thickness Tolerance (mm)

±0.25

Surface Quality

40-20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

Spectral Range (nm)

250-2500

Metallic Coating Area Angle (degree)

0° - 270°

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

+0.25/-0

Hole Diameter (mm)

7.5

Optical Density Range

0.04-2.0

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

+0/-0.25

Standard Linearity

±5%

Standard Deviation

±5%

Q-CCNDF-60-0.04-1.5 - Parameter

Type

Circular Continuous ND Filters

Material

Quartz

Thickness Tolerance (mm)

±0.25

Surface Quality

40-20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

Spectral Range (nm)

250-2500

Metallic Coating Area Angle (degree)

0° - 270°

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

+0.25/-0

Hole Diameter (mm)

7.5

Optical Density Range

0.04-1.5

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

+0/-0.25

Standard Linearity

±5%

Standard Deviation

±5%

Q-CCNDF-60-0.04-1.0 - Parameter

Type

Circular Continuous ND Filters

Material

Quartz

Thickness Tolerance (mm)

±0.25

Surface Quality

40-20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

Spectral Range (nm)

250-2500

Metallic Coating Area Angle (degree)

0° - 270°

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

+0.25/-0

Hole Diameter (mm)

7.5

Optical Density Range

0.04-1.0

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

+0/-0.25

Standard Linearity

±5%

Standard Deviation

±5%

Q-CCNDF-50-0.04-4.0 - Parameter

Type

Circular Continuous ND Filters

Material

Quartz

Thickness Tolerance (mm)

±0.25

Surface Quality

40-20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

Spectral Range (nm)

250-2500

Metallic Coating Area Angle (degree)

0° - 270°

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

+0.25/-0

Hole Diameter (mm)

7.5

Optical Density Range

0.04-4.0

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

+0/-0.25

Standard Linearity

±5%

Standard Deviation

±5%

Q-CCNDF-50-0.04-3.0 - Parameter

Type

Circular Continuous ND Filters

Material

Quartz

Thickness Tolerance (mm)

±0.25

Surface Quality

40-20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

Spectral Range (nm)

250-2500

Metallic Coating Area Angle (degree)

0° - 270°

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

+0.25/-0

Hole Diameter (mm)

7.5

Optical Density Range

0.04-3.0

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

+0/-0.25

Standard Linearity

±5%

Standard Deviation

±5%

Q-CCNDF-50-0.04-2.0 - Parameter

Type

Circular Continuous ND Filters

Material

Quartz

Thickness Tolerance (mm)

±0.25

Surface Quality

40-20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

Spectral Range (nm)

250-2500

Metallic Coating Area Angle (degree)

0° - 270°

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

+0.25/-0

Hole Diameter (mm)

7.5

Optical Density Range

0.04-2.0

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

+0/-0.25

Standard Linearity

±5%

Standard Deviation

±5%

Q-CCNDF-50-0.04-1.5 - Parameter

Type

Circular Continuous ND Filters

Material

Quartz

Thickness Tolerance (mm)

±0.25

Surface Quality

40-20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

Spectral Range (nm)

250-2500

Metallic Coating Area Angle (degree)

0° - 270°

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

+0.25/-0

Hole Diameter (mm)

7.5

Optical Density Range

0.04-1.5

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

+0/-0.25

Standard Linearity

±5%

Standard Deviation

±5%

Q-CCNDF-50-0.04-1.0 - Parameter

Type

Circular Continuous ND Filters

Material

Quartz

Thickness Tolerance (mm)

±0.25

Surface Quality

40-20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

Spectral Range (nm)

250-2500

Metallic Coating Area Angle (degree)

0° - 270°

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

+0.25/-0

Hole Diameter (mm)

7.5

Optical Density Range

0.04-1.0

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

+0/-0.25

Standard Linearity

±5%

Standard Deviation

±5%

Q-CCNDF-45-0.04-4.0 - Parameter

Type

Circular Continuous ND Filters

Material

Quartz

Thickness Tolerance (mm)

±0.25

Surface Quality

40-20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

Spectral Range (nm)

250-2500

Metallic Coating Area Angle (degree)

0° - 270°

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

+0.25/-0

Hole Diameter (mm)

7.5

Optical Density Range

0.04-4.0

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

+0/-0.25

Standard Linearity

±5%

Standard Deviation

±5%

Q-CCNDF-45-0.04-3.0 - Parameter

Type

Circular Continuous ND Filters

Material

Quartz

Thickness Tolerance (mm)

±0.25

Surface Quality

40-20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

Spectral Range (nm)

250-2500

Metallic Coating Area Angle (degree)

0° - 270°

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

+0.25/-0

Hole Diameter (mm)

7.5

Optical Density Range

0.04-3.0

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

+0/-0.25

Standard Linearity

±5%

Standard Deviation

±5%

Q-CCNDF-45-0.04-2.0 - Parameter

Type

Circular Continuous ND Filters

Material

Quartz

Thickness Tolerance (mm)

±0.25

Surface Quality

40-20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

Spectral Range (nm)

250-2500

Metallic Coating Area Angle (degree)

0° - 270°

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

+0.25/-0

Hole Diameter (mm)

7.5

Optical Density Range

0.04-2.0

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

+0/-0.25

Standard Linearity

±5%

Standard Deviation

±5%

Q-CCNDF-45-0.04-1.5 - Parameter

Type

Circular Continuous ND Filters

Material

Quartz

Thickness Tolerance (mm)

±0.25

Surface Quality

40-20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

Spectral Range (nm)

250-2500

Metallic Coating Area Angle (degree)

0° - 270°

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

+0.25/-0

Hole Diameter (mm)

7.5

Optical Density Range

0.04-1.5

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

+0/-0.25

Standard Linearity

±5%

Standard Deviation

±5%

Q-CCNDF-45-0.04-1.0 - Parameter

Type

Circular Continuous ND Filters

Material

Quartz

Thickness Tolerance (mm)

±0.25

Surface Quality

40-20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

Spectral Range (nm)

250-2500

Metallic Coating Area Angle (degree)

0° - 270°

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

+0.25/-0

Hole Diameter (mm)

7.5

Optical Density Range

0.04-1.0

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

+0/-0.25

Standard Linearity

±5%

Standard Deviation

±5%

Q-CCNDF-40-0.04-4.0 - Parameter

Type

Circular Continuous ND Filters

Material

Quartz

Thickness Tolerance (mm)

±0.25

Surface Quality

40-20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

Spectral Range (nm)

250-2500

Metallic Coating Area Angle (degree)

0° - 270°

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

+0.25/-0

Hole Diameter (mm)

7.5

Optical Density Range

0.04-4.0

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

+0/-0.25

Standard Linearity

±5%

Standard Deviation

±5%

Q-CCNDF-40-0.04-3.0 - Parameter

Type

Circular Continuous ND Filters

Material

Quartz

Thickness Tolerance (mm)

±0.25

Surface Quality

40-20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

Spectral Range (nm)

250-2500

Metallic Coating Area Angle (degree)

0° - 270°

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

+0.25/-0

Hole Diameter (mm)

7.5

Optical Density Range

0.04-3.0

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

+0/-0.25

Standard Linearity

±5%

Standard Deviation

±5%

Q-CCNDF-40-0.04-2.0 - Parameter

Type

Circular Continuous ND Filters

Material

Quartz

Thickness Tolerance (mm)

±0.25

Surface Quality

40-20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

Spectral Range (nm)

250-2500

Metallic Coating Area Angle (degree)

0° - 270°

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

+0.25/-0

Hole Diameter (mm)

7.5

Optical Density Range

0.04-2.0

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

+0/-0.25

Standard Linearity

±5%

Standard Deviation

±5%

Q-CCNDF-40-0.04-1.5 - Parameter

Type

Circular Continuous ND Filters

Material

Quartz

Thickness Tolerance (mm)

±0.25

Surface Quality

40-20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

Spectral Range (nm)

250-2500

Metallic Coating Area Angle (degree)

0° - 270°

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

+0.25/-0

Hole Diameter (mm)

7.5

Optical Density Range

0.04-1.5

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

+0/-0.25

Standard Linearity

±5%

Standard Deviation

±5%

Q-CCNDF-40-0.04-1.0 - Parameter

Type

Circular Continuous ND Filters

Material

Quartz

Thickness Tolerance (mm)

±0.25

Surface Quality

40-20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

Spectral Range (nm)

250-2500

Metallic Coating Area Angle (degree)

0° - 270°

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

+0.25/-0

Hole Diameter (mm)

7.5

Optical Density Range

0.04-1.0

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

+0/-0.25

Standard Linearity

±5%

Standard Deviation

±5%

B270-CCNDF-60-0.04-4.0 - Parameter

Type

Circular Continuous ND Filters

Material

B270

Thickness Tolerance (mm)

±0.25

Surface Quality

40-20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

±3

Spectral Range (nm)

380-2100

Metallic Coating Area Angle (degree)

0° - 270°

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

+0.25/-0

Hole Diameter (mm)

7.5

Optical Density Range

0.04-4.0

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

+0/-0.25

Standard Linearity

±5%

Standard Deviation

±5%

B270-CCNDF-60-0.04-3.0 - Parameter

Type

Circular Continuous ND Filters

Material

B270

Thickness Tolerance (mm)

±0.25

Surface Quality

40-20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

±3

Spectral Range (nm)

380-2100

Metallic Coating Area Angle (degree)

0° - 270°

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

+0.25/-0

Hole Diameter (mm)

7.5

Optical Density Range

0.04-3.0

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

+0/-0.25

Standard Linearity

±5%

Standard Deviation

±5%

B270-CCNDF-60-0.04-2.0 - Parameter

Type

Circular Continuous ND Filters

Material

B270

Thickness Tolerance (mm)

±0.25

Surface Quality

40-20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

±3

Spectral Range (nm)

380-2100

Metallic Coating Area Angle (degree)

0° - 270°

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

+0.25/-0

Hole Diameter (mm)

7.5

Optical Density Range

0.04-2.0

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

+0/-0.25

Standard Linearity

±5%

Standard Deviation

±5%

B270-CCNDF-60-0.04-1.5 - Parameter

Type

Circular Continuous ND Filters

Material

B270

Thickness Tolerance (mm)

±0.25

Surface Quality

40-20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

±3

Spectral Range (nm)

380-2100

Metallic Coating Area Angle (degree)

0° - 270°

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

+0.25/-0

Hole Diameter (mm)

7.5

Optical Density Range

0.04-1.5

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

+0/-0.25

Standard Linearity

±5%

Standard Deviation

±5%

B270-CCNDF-60-0.04-1.0 - Parameter

Type

Circular Continuous ND Filters

Material

B270

Thickness Tolerance (mm)

±0.25

Surface Quality

40-20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

±3

Spectral Range (nm)

380-2100

Metallic Coating Area Angle (degree)

0° - 270°

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

+0.25/-0

Hole Diameter (mm)

7.5

Optical Density Range

0.04-1.0

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

+0/-0.25

Standard Linearity

±5%

Standard Deviation

±5%

B270-CCNDF-50-0.04-4.0 - Parameter

Type

Circular Continuous ND Filters

Material

B270

Thickness Tolerance (mm)

±0.25

Surface Quality

40-20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

±3

Spectral Range (nm)

380-2100

Metallic Coating Area Angle (degree)

0° - 270°

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

+0.25/-0

Hole Diameter (mm)

7.5

Optical Density Range

0.04-4.0

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

+0/-0.25

Standard Linearity

±5%

Standard Deviation

±5%

B270-CCNDF-50-0.04-3.0 - Parameter

Type

Circular Continuous ND Filters

Material

B270

Thickness Tolerance (mm)

±0.25

Surface Quality

40-20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

±3

Spectral Range (nm)

380-2100

Metallic Coating Area Angle (degree)

0° - 270°

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

+0.25/-0

Hole Diameter (mm)

7.5

Optical Density Range

0.04-3.0

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

+0/-0.25

Standard Linearity

±5%

Standard Deviation

±5%

B270-CCNDF-50-0.04-2.0 - Parameter

Type

Circular Continuous ND Filters

Material

B270

Thickness Tolerance (mm)

±0.25

Surface Quality

40-20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

±3

Spectral Range (nm)

380-2100

Metallic Coating Area Angle (degree)

0° - 270°

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

+0.25/-0

Hole Diameter (mm)

7.5

Optical Density Range

0.04-2.0

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

+0/-0.25

Standard Linearity

±5%

Standard Deviation

±5%

B270-CCNDF-50-0.04-1.5 - Parameter

Type

Circular Continuous ND Filters

Material

B270

Thickness Tolerance (mm)

±0.25

Surface Quality

40-20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

±3

Spectral Range (nm)

380-2100

Metallic Coating Area Angle (degree)

0° - 270°

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

+0.25/-0

Hole Diameter (mm)

7.5

Optical Density Range

0.04-1.5

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

+0/-0.25

Standard Linearity

±5%

Standard Deviation

±5%

B270-CCNDF-50-0.04-1.0 - Parameter

Type

Circular Continuous ND Filters

Material

B270

Thickness Tolerance (mm)

±0.25

Surface Quality

40-20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

±3

Spectral Range (nm)

380-2100

Metallic Coating Area Angle (degree)

0° - 270°

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

+0.25/-0

Hole Diameter (mm)

7.5

Optical Density Range

0.04-1.0

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

+0/-0.25

Standard Linearity

±5%

Standard Deviation

±5%

B270-CCNDF-45-0.04-4.0 - Parameter

Type

Circular Continuous ND Filters

Material

B270

Thickness Tolerance (mm)

±0.25

Surface Quality

40-20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

±3

Spectral Range (nm)

380-2100

Metallic Coating Area Angle (degree)

0° - 270°

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

+0.25/-0

Hole Diameter (mm)

7.5

Optical Density Range

0.04-4.0

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

+0/-0.25

Standard Linearity

±5%

Standard Deviation

±5%

B270-CCNDF-45-0.04-3.0 - Parameter

Type

Circular Continuous ND Filters

Material

B270

Thickness Tolerance (mm)

±0.25

Surface Quality

40-20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

±3

Spectral Range (nm)

380-2100

Metallic Coating Area Angle (degree)

0° - 270°

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

+0.25/-0

Hole Diameter (mm)

7.5

Optical Density Range

0.04-3.0

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

+0/-0.25

Standard Linearity

±5%

Standard Deviation

±5%

B270-CCNDF-45-0.04-2.0 - Parameter

Type

Circular Continuous ND Filters

Material

B270

Thickness Tolerance (mm)

±0.25

Surface Quality

40-20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

±3

Spectral Range (nm)

380-2100

Metallic Coating Area Angle (degree)

0° - 270°

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

+0.25/-0

Hole Diameter (mm)

7.5

Optical Density Range

0.04-2.0

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

+0/-0.25

Standard Linearity

±5%

Standard Deviation

±5%

B270-CCNDF-45-0.04-1.5 - Parameter

Type

Circular Continuous ND Filters

Material

B270

Thickness Tolerance (mm)

±0.25

Surface Quality

40-20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

±3

Spectral Range (nm)

380-2100

Metallic Coating Area Angle (degree)

0° - 270°

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

+0.25/-0

Hole Diameter (mm)

7.5

Optical Density Range

0.04-1.5

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

+0/-0.25

Standard Linearity

±5%

Standard Deviation

±5%

B270-CCNDF-45-0.04-1.0 - Parameter

Type

Circular Continuous ND Filters

Material

B270

Thickness Tolerance (mm)

±0.25

Surface Quality

40-20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

±3

Spectral Range (nm)

380-2100

Metallic Coating Area Angle (degree)

0° - 270°

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

+0.25/-0

Hole Diameter (mm)

7.5

Optical Density Range

0.04-1.0

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

+0/-0.25

Standard Linearity

±5%

Standard Deviation

±5%

B270-CCNDF-40-0.04-4.0 - Parameter

Type

Circular Continuous ND Filters

Material

B270

Thickness Tolerance (mm)

±0.25

Surface Quality

40-20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

±3

Spectral Range (nm)

380-2100

Metallic Coating Area Angle (degree)

0° - 270°

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

+0.25/-0

Hole Diameter (mm)

7.5

Optical Density Range

0.04-4.0

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

+0/-0.25

Standard Linearity

±5%

Standard Deviation

±5%

B270-CCNDF-40-0.04-3.0 - Parameter

Type

Circular Continuous ND Filters

Material

B270

Thickness Tolerance (mm)

±0.25

Surface Quality

40-20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

±3

Spectral Range (nm)

380-2100

Metallic Coating Area Angle (degree)

0° - 270°

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

+0.25/-0

Hole Diameter (mm)

7.5

Optical Density Range

0.04-3.0

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

+0/-0.25

Standard Linearity

±5%

Standard Deviation

±5%

B270-CCNDF-40-0.04-2.0 - Parameter

Type

Circular Continuous ND Filters

Material

B270

Thickness Tolerance (mm)

±0.25

Surface Quality

40-20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

±3

Spectral Range (nm)

380-2100

Metallic Coating Area Angle (degree)

0° - 270°

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

+0.25/-0

Hole Diameter (mm)

7.5

Optical Density Range

0.04-2.0

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

+0/-0.25

Standard Linearity

±5%

Standard Deviation

±5%

B270-CCNDF-40-0.04-1.5 - Parameter

Type

Circular Continuous ND Filters

Material

B270

Thickness Tolerance (mm)

±0.25

Surface Quality

40-20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

±3

Spectral Range (nm)

380-2100

Metallic Coating Area Angle (degree)

0° - 270°

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

+0.25/-0

Hole Diameter (mm)

7.5

Optical Density Range

0.04-1.5

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

+0/-0.25

Standard Linearity

±5%

Standard Deviation

±5%

B270-CCNDF-40-0.04-1.0 - Parameter

Type

Circular Continuous ND Filters

Material

B270

Thickness Tolerance (mm)

±0.25

Surface Quality

40-20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

±3

Spectral Range (nm)

380-2100

Metallic Coating Area Angle (degree)

0° - 270°

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

+0.25/-0

Hole Diameter (mm)

7.5

Optical Density Range

0.04-1.0

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

+0/-0.25

Standard Linearity

±5%

Standard Deviation

±5%

BK7-RNDF-50-0.0-3.0 - Parameter

Type

Circular Continuous ND Filters

Material

BK7

Thickness Tolerance (mm)

± 0.2

Surface Quality

40/20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

Spectral Range (nm)

400-700

Metallic Coating Area Angle (degree)

360

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

±0.25

Hole Diameter (mm)

Optical Density Range

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

±0.25

Standard Linearity

±5%

Standard Deviation

±5%

BK7-RNDF-50-0.0-2.0 - Parameter

Type

Circular Continuous ND Filters

Material

BK7

Thickness Tolerance (mm)

± 0.2

Surface Quality

40/20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

Spectral Range (nm)

400-700

Metallic Coating Area Angle (degree)

360

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

±0.25

Hole Diameter (mm)

Optical Density Range

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

±0.25

Standard Linearity

±5%

Standard Deviation

±5%

BK7-RNDF-50-0.0-1.5 - Parameter

Type

Circular Continuous ND Filters

Material

BK7

Thickness Tolerance (mm)

± 0.2

Surface Quality

40/20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

Spectral Range (nm)

400-700

Metallic Coating Area Angle (degree)

360

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

±0.25

Hole Diameter (mm)

Optical Density Range

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

±0.25

Standard Linearity

±5%

Standard Deviation

±5%

BK7-RNDF-50-0.0-1.0 - Parameter

Type

Circular Continuous ND Filters

Material

BK7

Thickness Tolerance (mm)

± 0.2

Surface Quality

40/20

Clear Aperture

>80%

Chamfer

<0.5mmx45°

Damage Threshold (pulsed)

7.5 J/cm2 (10ns/10Hz)

Thickness (mm)

1.5

Parallelism (arcmin)

Spectral Range (nm)

400-700

Metallic Coating Area Angle (degree)

360

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

±0.25

Hole Diameter (mm)

Optical Density Range

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

±0.25

Standard Linearity

±5%

Standard Deviation

±5%

BK7-MNDF-50-0-3 - Parameter

Type

Material

BK7

Surface Quality

40-20

Clear Aperture

85%

Spectral Range (nm)

400-700

Metallic Coating Area Angle (degree)

270

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

± 0.1

Hole Diameter (mm)

Coating on Surface A

No-Cr-Fe

Coating on Surface B

Broadband AR coated Rave<0.5%@430-700nm

Optical Density Range

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

± 0.1

BK7-MNDF-50-0-2 - Parameter

Type

Material

BK7

Surface Quality

40-20

Clear Aperture

85%

Spectral Range (nm)

400-700

Metallic Coating Area Angle (degree)

270

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

± 0.1

Hole Diameter (mm)

Coating on Surface A

No-Cr-Fe

Coating on Surface B

Broadband AR coated Rave<0.5%@430-700nm

Optical Density Range

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

± 0.1

BK7-MNDF-50-0-1.5 - Parameter

Type

Material

BK7

Surface Quality

40-20

Clear Aperture

85%

Spectral Range (nm)

400-700

Metallic Coating Area Angle (degree)

270

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

± 0.1

Hole Diameter (mm)

Coating on Surface A

No-Cr-Fe

Coating on Surface B

Broadband AR coated Rave<0.5%@430-700nm

Optical Density Range

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

± 0.1

BK7-MNDF-50-0-0.1 - Parameter

Type

Material

BK7

Surface Quality

40-20

Clear Aperture

85%

Spectral Range (nm)

400-700

Metallic Coating Area Angle (degree)

270

Parallelism (arcsec)

<30

Hole Diameter Tolerance (mm)

± 0.1

Hole Diameter (mm)

Coating on Surface A

No-Cr-Fe

Coating on Surface B

Broadband AR coated Rave<0.5%@430-700nm

Optical Density Range

Outside Diameter (mm)

Outside Diameter Tolerance (mm)

± 0.1

Q-CCNDF-60-0.04-4.0 - Download

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Q-CCNDF-50-0.04-3.0 - Download

Q-CCNDF-50-0.04-2.0 - Download

Q-CCNDF-50-0.04-1.5 - Download

Q-CCNDF-50-0.04-1.0 - Download

Q-CCNDF-45-0.04-4.0 - Download

Q-CCNDF-45-0.04-3.0 - Download

Q-CCNDF-45-0.04-2.0 - Download

Q-CCNDF-45-0.04-1.5 - Download

Q-CCNDF-45-0.04-1.0 - Download

Q-CCNDF-40-0.04-4.0 - Download

Q-CCNDF-40-0.04-3.0 - Download

Q-CCNDF-40-0.04-2.0 - Download

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B270-CCNDF-60-0.04-2.0 - Download

B270-CCNDF-60-0.04-1.5 - Download

B270-CCNDF-60-0.04-1.0 - Download

B270-CCNDF-50-0.04-4.0 - Download

B270-CCNDF-50-0.04-3.0 - Download

B270-CCNDF-50-0.04-2.0 - Download

B270-CCNDF-50-0.04-1.5 - Download

B270-CCNDF-50-0.04-1.0 - Download

B270-CCNDF-45-0.04-4.0 - Download

B270-CCNDF-45-0.04-3.0 - Download

B270-CCNDF-45-0.04-2.0 - Download

B270-CCNDF-45-0.04-1.5 - Download

B270-CCNDF-45-0.04-1.0 - Download

B270-CCNDF-40-0.04-4.0 - Download

B270-CCNDF-40-0.04-3.0 - Download

B270-CCNDF-40-0.04-2.0 - Download

B270-CCNDF-40-0.04-1.5 - Download

B270-CCNDF-40-0.04-1.0 - Download

BK7-RNDF-50-0.0-3.0 - Download

Download

BK7-RNDF-50-0.0-2.0 - Download

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BK7-RNDF-50-0.0-1.5 - Download

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BK7-RNDF-50-0.0-1.0 - Download

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BK7-MNDF-50-0-3 - Download

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BK7-MNDF-50-0-2 - Download

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BK7-MNDF-50-0-1.5 - Download

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BK7-MNDF-50-0-0.1 - Download

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