FNDU-25C02-80 25 mm Dia. Unmounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm

OptoSigma's FNDU-25C02-80 is a 25 mm diameter, unmounted, reflective neutral density filter, designed for use in the ultraviolet range of 200-400nm. This filter is part of the UVFS series, identified by the material ID "uvfs mal- 1965".

The filter is designed with a thin lens shape, ensuring minimal distortion and a high level of optical clarity. It features a thickness of 2mm, providing robustness and stability during use. The front and back surfaces of the filter are coated with "opt fndu-80", a specialized coating that enhances its performance in reflective neutral density applications.

The FNDU-25C02-80 is a neutral density filter, meaning it reduces the intensity of light without altering its color balance. This makes it an ideal choice for applications where light intensity needs to be controlled, such as in photography, laser applications, and scientific research.

The filter is currently in stock and can be purchased directly from the OptoSigma website using the provided weblink. With its high-quality construction, specific design for UV applications, and reliable performance, the FNDU-25C02-80 is a versatile and valuable addition to any optical setup.