The MFNDU-25-5 is a Neutral Density Filter, specifically designed for use in the UVFS material ID range of 1965. This filter, offered by OptoSigma, is mounted with a 25 mm diameter and has a thickness of 2mm. It is designed to operate within the wavelength range of 200-400nm.
The filter features a front and back coating of Opt FNDU-5, which is a reflective neutral density coating. This coating is specifically designed to maintain a consistent neutral density across the entire spectrum of light it is designed to handle. The shape of the filter is thin lens, which is optimal for applications where a flat, thin filter is required.
The filter is currently in stock and available for purchase. For more information, including pricing and detailed specifications, please refer to the provided weblink.