13-128 50 mm Dia. Hoya ND-006 Absorptive Neutral Density Filter; OD 4 425-675nm

The 13-128 is a 50 mm diameter Neutral Density Filter, manufactured by Hoya and sourced from Edmund Optics. This filter is designed with a base shape of a Circular Thin Lens, featuring a thickness of 2.85 mm, making it an ideal choice for applications requiring a compact and lightweight optical component.

The filter boasts a high Optical Density (OD) of 4, specifically within the wavelength range of 425-675nm. This characteristic makes it highly effective in reducing light intensity without altering the color composition of the incident light, thus maintaining color fidelity in the optical path.

The 13-128 filter is coated with EDM 13-094 on both the front and back surfaces. This coating enhances the filter's performance by reducing surface reflections and improving transmission, thereby minimizing losses and ensuring optimal light throughput.

The filter is currently in stock and available for purchase through the Edmund Optics website, as indicated by its "Valid - in stock" weblink status. For more detailed information, users are encouraged to visit the provided weblink: https://www.edmundoptics.com/p/4-od-50mm-dia-vis-0-coated-absorptive-nd-filter/44416/