FNDU-50C02-5 50 mm Dia. Unmounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm

The FNDU-50C02-5 is a 50 mm diameter, unmounted Neutral Density Filter, manufactured by OptoSigma. This filter is designed for use in the ultraviolet range, specifically between 200 and 400 nanometers.

The filter is made from UVFS material, identified as "UVFS mal- 1965" in the item data. This material is known for its excellent optical properties in the UV range. The filter has a thickness of 2mm, providing durability and stability during use.

The filter features a Reflective Neutral Density coating on both the front and back surfaces. This coating, identified as "opt fndu-5", is designed to reduce 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 or scientific research.

The filter has a circular shape and a Thin Lens geometry, which helps to minimize optical aberrations and distortions. It is currently in stock and available for purchase, as indicated by its "Valid - in stock" web link status.

For more information, including pricing and availability, please refer to the provided web link: https://www.optosigma.com/us_en/optics/filters/neutral-density-filters/reflective-neutral-density-filter-unmounted-uv-50mm-diameter-5i1-4-FNDU-50C02-5.html