MFND-25-10 25 mm Dia. Mounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm

The MFND-25-10 is a Neutral Density Filter, a type of optical component designed to reduce the intensity of light without altering its color composition. This particular model, sourced from OptoSigma, is mounted with a 25 mm diameter and a thickness of 2mm, making it suitable for various optical systems.

The filter is made of N-BK7, a high-grade borosilicate glass known for its excellent optical properties, including low auto-fluorescence and high transmittance in the visible spectrum. This material is specifically designed for use in the visible light range, from 400 to 700 nanometers, ensuring optimal performance in this spectrum.

The front and back surfaces of the filter are coated with the OPT FND-10 coating, a reflective neutral density coating that further enhances the filter's light reduction capabilities. This coating is designed to provide a uniform attenuation of light across the visible spectrum, ensuring consistent performance.

The filter's thin lens shape allows for easy integration into various optical systems. It is currently in stock and available for purchase through the provided weblink.