Circular Variable Neutral Density Attenuator front product view on a dark background
Angled view of Circular Variable Neutral Density Attenuator for spectroscopy, imaging and wavelength selection

SO-F17 SERIES

Circular Variable Neutral Density Attenuator

SO-F17 Circular Variable Neutral Density Attenuator provides continuous attenuation adjustment by rotating a circular gradient-density optic.

$523.53
$523.53

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Product Overview

Evaluate Circular Variable Neutral Density Attenuator across the complete spectral requirement

Spectral edges, center wavelength and attenuation values are specified for defined measurement conditions. Angle and temperature can shift interference-filter response.

Use the calibrated OD range and aperture position, and avoid placing a focused high-power beam on a small coating area.

Select a Model

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Engineering Guidance

Choose spectral performance across the full passband and blocking band

Spectral behavior

Spectral edges, center wavelength and attenuation values are specified for defined measurement conditions. Angle and temperature can shift interference-filter response.

Selection and incidence conditions

Use the calibrated OD range and aperture position, and avoid placing a focused high-power beam on a small coating area.

Need a different diameter, tolerance or coating?

Custom substrate materials, dimensions, angular tolerances and coating bands can be reviewed for prototype and production quantities.

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Technical Resources

Related engineering articles

Selection notes and practical guidance matched to this product family.

CANAL GLASS SHOP
TECHNICAL RESOURCE
Optical Fundamentals · 7 min

Longpass, Shortpass and Bandpass Filter Selection

Choose the correct spectral function around the source spectrum, detector response and unwanted wavelengths.
CANAL GLASS SHOP
TECHNICAL RESOURCE
Coating Design · 6 min

How Substrate and Coating Design Shape Spectral Response

Understand how material, interference layers, angle and temperature influence filter performance.
CANAL GLASS SHOP
TECHNICAL RESOURCE
Selection Guide · 8 min

Reading Cut-On, Cut-Off, Blocking and Transmission Data

Evaluate the complete passband and blocking region instead of selecting from one wavelength alone.