FNM0625 25 mm Dia. Metallic Neutral Density Filter 546nm

The FNM0625 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 in photography, cinematography, and scientific research.

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

The FNM0625 features a unique coating on both the front and back surfaces, denoted as 'kni fnm06'. This coating enhances the filter's performance by reducing surface reflections and increasing transmission, thereby improving the overall image quality. The shape of the filter is thin lens, further minimizing any potential optical aberrations.

The filter is designed to work at a specific wavelength of 546nm, making it suitable for applications that require precise light control at this wavelength. The filter's current status is 'in stock', and it is available for immediate purchase through the vendor's website.