NDUV520B Dia. 0.5 in Unmounted UVFS Reflective ND Filter; OD 2.0

The NDUV520B is a circular Neutral Density Filter, unmounted, with a diameter of 0.5 inches and a thickness of 1 millimeter. This filter is sourced from Thorlabs, a renowned vendor in the optical industry, and is part of their UVFS reflective series, specifically identified by the material ID "uvfs mal- 1965".

The NDUV520B is designed to uniformly reduce the intensity of incident light without altering its color composition. This is particularly useful in high-intensity lighting scenarios or when working with sensitive optical equipment. The filter's Neutral Density value is OD 2.0, which corresponds to a transmission of 1%, making it highly effective at reducing light intensity.

The filter features the same coating on both the front and back surfaces, specifically "tho nduv od2". This coating is likely a proprietary technology of Thorlabs, contributing to the filter's specific light reduction properties. The filter's shape is described as a Thin Lens, suggesting a precise and uniform curvature, which may contribute to its optical performance.

The NDUV520B is currently in stock and available for purchase through the vendor's website. For more information, including pricing and availability, please refer to the provided web link.