ND230B 50 mm x 50 mm; Unmounted Reflective ND Filter; Optical Density 3.0

The ND230B is a 50 mm x 50 mm unmounted reflective neutral density filter, boasting an optical density of 3.0. This filter is sourced from the renowned optical component manufacturer, Thorlabs.

The ND230B is a type of filter, specifically a Neutral Density Filter, designed to reduce the intensity of all wavelengths of light equally, thereby maintaining the original color balance of the scene. This filter is rectangular in shape, making it a versatile choice for various optical applications.

The filter is made from N-BK7 Schott, a high-quality optical glass known for its excellent transmittance and low auto-fluorescence. The geometry of the filter includes a width of 50 mm, a height of 50 mm, and a thickness of 2 mm, ensuring durability and precision.

The ND230B features a thin lens shape and is coated with THo ND30 on both the front and back surfaces. This coating enhances the filter's performance by reducing reflections and increasing transmission, thereby improving the overall quality of the optical system.

For more information and to check the current stock status, you can visit the product page at https://www.thorlabs.com/thorproduct.cfm?partnumber=ND230B.