ND530B Dia. 0.5 in Unmounted Reflective ND Filter; Optical Density 3.0

The ND530B is a circular, unmounted Neutral Density (ND) filter, boasting a diameter of 0.5 inches and a thickness of 1 millimeter. Manufactured by Thorlabs, a renowned vendor in the optical industry, this filter is made of N-BK7 Schott, a high-quality optical glass known for its excellent transmittance and low auto-fluorescence.

The ND530B features a front and back coating of THo ND30, a reflective coating that provides an optical density of 3.0 at a wavelength of 633 nanometers. This high optical density significantly reduces the amount of light passing through the filter, making it ideal for high-intensity lighting situations or for controlling exposure in photography and cinematography.

The filter's thin lens shape allows for easy integration into various optical systems. The ND530B is currently in stock and available for purchase through the Thorlabs website, as indicated by its valid weblink status. For more information, users can refer to the catalog number or visit the provided weblink.