FNM3025 25 mm Dia. Metallic Neutral Density Filter 546nm

The FNM3025 is a 25 mm diameter Neutral Density Filter, sourced from Knight Optical, a renowned vendor known for its extensive catalog of optical elements. This filter is designed to reduce the intensity of light without altering its color composition, making it an ideal choice for various applications.

The filter is made from N-BK7 Schott, a high-quality optical glass known for its excellent transmittance and low auto-fluorescence. The base shape is circular, providing a uniform and consistent light reduction across the entire diameter. The geometry of the filter includes a diameter of 25 mm and a thickness of 2 mm, ensuring a robust and durable construction.

The FNM3025 features a unique coating on both the front and back surfaces, denoted as 'kni fnm30'. This coating enhances the filter's performance by reducing surface reflections and increasing light transmission. The coating also provides scratch resistance, ensuring the filter maintains its optical quality over time.

The filter is designed to operate at a wavelength of 546 nm, making it suitable for applications that require light reduction at this specific wavelength. The shape of the filter is 'Thin Lens', indicating a carefully designed profile that minimizes optical aberrations and ensures accurate light transmission.

According to the provided item data, the FNM3025 is currently in stock and available for immediate purchase. The filter's detailed specifications and the vendor's reputation make it a reliable choice for users seeking high-quality optical filters.