Neutral Density Filters Catalog

Hoya’s neutral density filters have nearly even spectral transmittance in the visible region, and are classified by the average transmittance within wavelengths from 400 nm through 700 nm. With the ability to control light intensity without selectively absorbing light with a specific wavelength, these neutral density filters can be used for a variety of applications including adjustment of light. Download the catalog for more specifications as well as graphs depicting internal transmittance.