OptoSigma's FNDU-50C02-20 is a 50 mm diameter, unmounted, reflective neutral density filter, designed for use in the UV region of the spectrum, specifically between 200-400nm. This filter is part of the UVFS series, identified by the material ID 'uvfs mal- 1965'.
The filter boasts a thickness of 2mm, providing a balance between durability and minimal optical impact. It features a thin lens shape, making it suitable for a wide range of optical applications. The front and back surfaces of the filter are coated with 'opt fndu-20', a reflective neutral density coating that enhances its performance in the specified UV range.
This filter is currently in stock and available for purchase through the OptoSigma website. The provided weblink offers direct access to the product page for convenient browsing and ordering. With its specifications and availability, the FNDU-50C02-20 is an excellent choice for those seeking a high-quality, UV-specific, neutral density filter.