ND203B 50 mm x 50 mm; Unmounted Reflective ND Filter; Optical Density 0.3

The ND203B is a 50 mm x 50 mm unmounted reflective neutral density filter, boasting an optical density of 0.3. This filter is sourced from the renowned optical component manufacturer, Thorlabs. The ND203B is designed to reduce the intensity of incident light without altering its color composition, making it an ideal choice for various applications in photography, cinematography, and scientific research.

The filter is made from high-quality N-BK7 Schott glass, a material known for its excellent optical properties, including high homogeneity, low auto-fluorescence, and superior chemical resistance. This ensures the filter provides consistent performance and maintains its structural integrity over time.

The ND203B features a thin lens shape, with a thickness of 2 mm, making it compatible with a wide range of optical systems. The front and back surfaces of the filter are coated with Thorlabs' proprietary tho nd03 coating, designed to further reduce reflectance and improve transmission. This coating enhances the filter's performance by minimizing unwanted reflections and ghosting, thereby increasing the overall image quality.

For users seeking detailed product information, Thorlabs provides a comprehensive catalog page (https://www.thorlabs.com/thorproduct.cfm?partnumber=ND203B) with up-to-date availability and stock status. The ND203B is currently in stock, ensuring quick and reliable delivery for your optical component needs.