FNG0413 12.5 mm Dia. Absorptive Glass Neutral Density Filter 546nm

The FNG0413 is a Neutral Density Filter with a 12.5 mm diameter, sourced from Knight Optical. This filter is designed to reduce the intensity of light without altering its color composition, making it ideal for applications where controlling light intensity is crucial.

The filter is made of UVFS Mal-1965 material, a type of glass known for its optical properties. It has a wavelength of 546nm, which is within the visible light spectrum. The geometry of the filter includes a diameter of 12.5mm and a thickness of 3.2mm, making it suitable for use in compact optical systems.

The FNG0413 features a thin lens shape, which helps minimize optical aberrations and distortions. It is coated on both the front and back with the Kni FNG04 coating, which enhances its light absorption capabilities and durability.

This filter is currently in stock and available for purchase on Knight Optical's website. Its catalog number is FNG0413, and it can be found at the following link: https://www.knightoptical.com/stock/default/0-4-od-glass-nd-filter-12-5mmdia.html