AND-40C-50 40 mm Dia. Optical Glass Unmounted Visible Absorptive Neutral Density Filter 400-700nm

OptoSigma's AND-40C-50 is a high-quality Neutral Density Filter, designed for use in the visible light spectrum, specifically between 400-700nm. This unmounted filter, with a diameter of 40mm and a thickness of 2mm, is a circular filter made of optical glass, featuring a Thin Lens shape.

The filter's primary function is to reduce the intensity of light entering the optical system without altering its color composition. This is achieved through the use of absorptive coatings on both the front and back surfaces, identified as 'opt and-50'. These coatings ensure a consistent and uniform attenuation of light, making the filter ideal for applications requiring precise control over light intensity, such as in photography, cinematography, and scientific research.

The filter is identified by the catalog number AND-40C-50 and is currently in stock. It is available for purchase through the vendor's website, with the weblink provided in the item data. The filter's Material ID is UVFS MAL-1965, indicating its specific composition and properties.