This is a 59-170 model Neutral Density Filter, offered by the renowned optical vendor, Edmund Optics. The filter is designed with a circular shape, featuring a diameter of 39 mm and a thickness of 4.5 mm, making it suitable for a wide range of optical applications.
The filter is made from UVFS MAL-1965 material, a choice that ensures excellent optical performance. It is coated on both the front and back with EDM 59-167, a coating that enhances its absorptive properties and neutral density capabilities. This coating is particularly effective in the 400-700nm wavelength range, providing a consistent and reliable performance.
The filter is mounted, which adds to its convenience and ease of use. It is currently in stock and available for purchase through the Edmund Optics website, as indicated by its 'Valid - in stock' weblink status.