FNM0525 25 mm Dia. Metallic Neutral Density Filter 546nm

The FNM0525 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 geometry of the filter includes a diameter of 25 mm and a thickness of 2 mm, providing a robust and compact design.

The FNM0525 features a unique coating on both the front and back surfaces, identified as 'kni fnm05'. 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 operate at a wavelength of 546nm, making it suitable for applications that require specific light filtration. The 'weblink status' is 'Valid - in stock', indicating that the filter is readily available for immediate use.