ND220B 50 mm x 50 mm; Unmounted Reflective ND Filter; Optical Density 2.0

The ND220B is a 50 mm x 50 mm Neutral Density Filter, offering a significant reduction in light intensity without altering the color composition of the incoming light. This unmounted reflective ND filter, manufactured by Thorlabs, is designed with a high-quality n-bk7 schott material, ensuring excellent optical performance.

The filter boasts an Optical Density of 2.0, which translates to a 100x reduction in transmittance compared to an uncoated optical surface. This characteristic makes the ND220B an ideal solution for high-intensity lighting scenarios, enabling users to achieve the desired exposure levels without compromising image quality.

The ND220B features thin lens geometry, with a thickness of 2 mm, providing minimal added weight and dimensions to your optical setup. The front and back surfaces of the filter are coated with tho nd20, a specialized coating that further enhances the filter's performance and durability.

With a catalog number of ND220B, this filter is available directly from Thorlabs' website, ensuring a reliable and efficient purchasing process. The weblink status indicates that the item is in stock, ready for immediate shipping and integration into your optical system.