FNM2025 25 mm Dia. Metallic Neutral Density Filter 546nm

The FNM2025 is a 25 mm diameter Neutral Density Filter, specifically designed for visible light with a wavelength of 546nm. This filter is sourced from Knight Optical, a reputable vendor known for their high-quality optical elements.

The filter is circular in shape, made from N-BK7 Schott material, a popular choice for its excellent optical properties and durability. It features a thin lens shape, which is beneficial for reducing weight and thickness in optical systems. The filter's geometry includes a diameter of 25mm and a thickness of 2mm, providing a balance between robustness and compactness.

The FNM2025 is coated with Kni FNM20 on both the front and back surfaces. This coating enhances the filter's performance by reducing unwanted reflections and increasing transmission, thereby improving the overall quality of the optical system.

The filter is currently in stock and available for purchase on Knight Optical's website. For more information, you can visit the following link: https://www.knightoptical.com/stock/default/2-0-od-metallic-nd-filter-visible-grade-25mmdia.html