Circular Staircase Neutral Density Filters

Circular step neutral density filter (referred to as circular step density sheet) can attenuate light intensity in discrete steps within the filter area, with a fixed optical density in each discrete area. This type of filter can be applied in fields such as natural light and laser.

The outer diameter size of the filter can be selected within 25mm to 100mm. Optional use of spectral range 250nm-2500nm. Special size, density, and wavelength density sheets can be customized.

The above models are available in stock for you to choose from, if you need custom Optical Circular step neutral density filters or bulk orders, please contact our sales team: info@borisuns.com