The NDUV510B 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 series, specifically identified as UVFS Mal-1965.
The NDUV510B is designed with a UVFS coating on both the front and back, specifically the THo NDUV OD1 coating. This coating is engineered to provide a high level of neutral density, which is crucial for applications that require the reduction of light intensity without altering the color composition of the light source.
The filter's geometry is shaped as a thin lens, which is beneficial for applications that require minimal added thickness or weight. The NDUV510B is currently in stock and available for immediate purchase through the vendor's website, as indicated by its weblink status.